• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
Successsuccess

YC co-founder who backed Airbnb, Dropbox, and Reddit says high school isn’t the time to launch a startup

By
Jessica Coacci
Jessica Coacci
Success Fellow
Down Arrow Button Icon
September 8, 2025, 11:59 AM ET
One of the leaders behind Silicon Valley’s biggest start-ups is advising high school students to embrace learning before starting their dream business.
One of the leaders behind Silicon Valley’s biggest start-ups is advising high school students to embrace learning before starting their dream business.tulcarion—Getty Images
  • Paul Graham, co-founder of Y Combinator, is warning high schoolers not to rush into launching startups too early. While he acknowledges some rare cases like OpenAI CEO Sam Altman, who he backed at 19, Graham says most teens just aren’t yet mature enough for founder life. Instead of chasing early startup success, he advises Gen Zers to focus on learning, curiosity, and building skills first.

Sorry, high schoolers, your dreams of pitching that dream start-up on Shark Tank will have to wait. Paul Graham, the co-founder of Y Combinator—the start-up accelerator behind Silicon Valley giants like Airbnb, Stripe, Dropbox and Reddit advises not to rush into entrepreneurship before graduation. 

Recommended Video

“If you’re in high school and you want to start a startup one day, you might think the best thing to do now is to start startups. But it probably isn’t,” Graham wrote on X.

Instead, Graham highlighted the importance that Gen Zers should focus on learning and skill-building while they’re young. “Startups are rarely the optimal way to do this,” he continued, adding that startups can get in the way of learning because of the pressure to succeed.

“The point of a startup is to make something people want, not to learn,” he added. “You will learn things in a startup, of course. But the way to learn the fastest is to work on whatever you’re most curious about, and you don’t have that luxury in a startup. In a startup, you have to work on whatever users want most.”

But don’t worry, you don’t have to wait too long after high school to start the founder path: Sam Altman, CEO of OpenAI was funded by Y Combinator at just 19, and Graham previously wrote that, “when he was 19, he seemed like he had a 40-year-old inside him.”

How to test if you’re old enough to start a startup

It’s not the first time the “Founder Mode” startup guru has warned against prematurely becoming a self-starter. In a separate essay in 2007, he even outlined how he looks for maturity in founders.

In it, Graham writes that the lower age limit for being founder-ready may be as young as 16, though Y Combinator typically does not look at anyone younger than 18 who can’t legally enter into contracts. And although Altman, was the youngest and most succesful founder Graham backed, he wrote “there are other 19 year olds who are 12 inside.” 

So if you’re an ambitious student who thinks they’ve cracked the code for a new product or idea, he shared exactly how to test if you’ve passed his maturity threshold. 

One example is making excuses of being “just a kid” and relying on your youth to escape complex situations. Adults typically could allow you off the hook, but Graham emphasizes the importance not to rely on this “kid flake reflex” when things get too hard if you want to be taken seriously as a founder.

Another way to measure if you’re ready is by taking note of how you react to criticism. When people pose challenges to an idea. Instead of walking away from your idea when given critiques, or rebelling, Graham says the adult reaction would be to ask “Really? Why do you think so?”

“What you don’t often find are kids who react to challenges like adults. When you do, you’ve found an adult, whatever their age,” he wrote. 

Did your workplace make our list of the 100 Best Companies to Work For? Explore this year's list.
About the Author
By Jessica CoacciSuccess Fellow

Jessica Coacci is a reporting fellow at Fortune where she covers success. Prior to joining Fortune, she worked as a producer at CNN and CNBC.

See full bioRight Arrow Button Icon

Latest in Success

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map

Most Popular

placeholder alt text
Economy
The $38 trillion national debt is to blame for over $1 trillion in annual interest payments from here on out, CRFB says
By Nick LichtenbergDecember 17, 2025
3 days ago
placeholder alt text
AI
Meta’s 28-year-old billionaire prodigy says the next Bill Gates will be a 13-year-old who is ‘vibe coding’ right now
By Eva RoytburgDecember 19, 2025
1 day ago
placeholder alt text
Success
As graduates face a ‘jobpocalypse,’ Goldman Sachs exec tells Gen Z they need to know their commercial impact 
By Preston ForeDecember 18, 2025
2 days ago
placeholder alt text
Success
The scientist who helped create AI says it’s only ‘a matter of time’ before every single job is wiped out—even safer trade jobs like plumbing
By Orianna Rosa RoyleDecember 19, 2025
22 hours ago
placeholder alt text
Success
Billionaire who sold two companies to Coca-Cola says he tries to persuade people not to become entrepreneurs: ‘Every single day, you can go bankrupt’
By Dave SmithDecember 19, 2025
21 hours ago
placeholder alt text
Economy
‘This is a wacky number’: economists cry foul as new government data assumes zero housing inflation in surprising November drop
By Eva RoytburgDecember 18, 2025
2 days ago

© 2025 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.


Latest in Success

Future of WorkGen Z
Gen Z is open minded about blue-collar work and the Fords of the economy need them — but both sides are missing each other
By Muskaan ArshadDecember 20, 2025
1 hour ago
Josie Lauducci on the front of her boat
SuccessCareers
Meet the Gen Xer who lives on a boat—she supercommutes to California every few weeks for her $100-an-hour job. Just eight shifts cover all her bills
By Preston ForeDecember 20, 2025
2 hours ago
Late Apple cofounder Steve Jobs
SuccessCareers
Steve Jobs sold his Volkswagen to raise $1,300 for Apple’s first computer. He became a millionaire just two years later at 23
By Emma BurleighDecember 19, 2025
20 hours ago
Yann LeCun smiles and adjusts his glasses
AIVenture Capital
AI whiz Yann LeCun is already targeting a $3.5 billion valuation for his new startup—and it hasn’t even launched yet
By Dave SmithDecember 19, 2025
20 hours ago
David Baszucki with his thumbs up
SuccessCareer Advice
Roblox CEO David Baszucki went from window cleaner to billionaire tech leader. He says a secret to success has been trusting his gut
By Preston ForeDecember 19, 2025
20 hours ago
Mike Repole sits in front of a microphone
SuccessBillionaires
Billionaire who sold two companies to Coca-Cola says he tries to persuade people not to become entrepreneurs: ‘Every single day, you can go bankrupt’
By Dave SmithDecember 19, 2025
21 hours ago