I don't know if it's everyone, but kids where I grew up were taught to get perfect grades in school and never have the slightest flaws or else you're doomed to permanent poverty and everyone will abandon you. I can easily imagine college students being worried about perfection, since the alternative is living in a trash can. Also college students are going to largely represent the more stable, wealthier sections of society. People who perhaps haven't had a lot of criticism and have a lot more to lose.

Also college students are taking out $100k loans and know that slipping up just slightly means becoming an indentured servant.