> If you want to get rich by 30, you basically have to start a startup or get into a top small hedge fund out of undergrad.

I am 30, I am rich by most measures of wealth and probably in the minds of most college grads. I worked in various big tech companies (incl stints in FAANG) after graduating with my BS in CS. A lot of my peers did do startups, and they had varying degrees of success. But almost everyone who went to big tech has set up their next generation for success at this point