Beware this logic; it leads to playing the lottery.

"You can't win if you don't play" isn't any less true with the lottery, you're just looking at much worse odds than other, more preferable, situations.

Its also very unlikely you'll stumble into a windfall founding or working for a startup. Its something some may not want to hear but from a purely financial perspective of startup vs corp, 99% of cases it is always going to be financially better to work for a corp.

If you're working for a startup hopefully you are doing it for better reasons.

There's nothing stopping you from hedging your bets. I work full-time and put away 60%+ of it. This is capital for whatever investments I make, including into my own startup that I work on when I get home. Fact is I get paid what I do by the corp because I'm worth at least that much. As a single, unmarried software developer there's nothing stopping me from exploiting my value generating capabilities directly, so not attempting a startup is nonsensical IMO.