I know it's a privileged outlook to think that a big part of college should be figuring out what you want to do, with vocational training secondary, but it's a privilege I think society should change to afford to everyone, rather than binding people into their roles at an ever-earlier stage.

I agree, and I think it's a really important part of dismantling the class system to make this possible for as many people as we can. Seems to me that if you are bound into your role at an early stage, you're far more likely to stay in the class you started in, for lack of knowledge about other options.