Warren Buffett's son thought his dad checked security alarms. Most billionaire kids grow up with luxury-Peter Buffett grew up with mystery. As a child, he thought his dad was a security analyst (which he assumed meant checking alarm systems). It wasn't until he was 25 that he realized Warren Buffett wasn't just doing okay—he was one of the richest men in the world. No trust funds. No private jets. Just a modest upbringing in Omaha, where wealth was never on display. At 19, Peter received Berkshire Hathaway stock worth $90K—had he kept it, it'd be worth $300 million today. Instead, he cashed out to follow his passion for music. No regrets. Warren Buffett's philosophy? Give your kids enough to chase their dreams, but not so much they never have to.