The recruiter asked why I didn't pursue the startup idea and I said, "I need to pay the rent."
I think that sums it up right there for most. We enter college with nothing, and we leave college with less than nothing (i.e. $100,000 in debt). So we go get a job so we can pay the bills meaning we get $5k a month coming in pretty easily and that's a lot of money. It's definitely enough money for a college kid to pay for rent and be happy for a while and they probably end up being so happy that nothing else is worth the risk.
Why risk $60k a year on a startup that will buy you (if you are lucky) some ramen to eat and some space in your parents' basement? A BMW plus a phat apartment in a high rise is difficult to turn down for something that appears, for all intents and purposes, to have about a 1 in 1000 (at best) shot of success.
That's why we have no entrepreneurs anymore. Life is too easy without them.