College has a monopoly on social life if you're in the late teens/early 20s. I believe this is part of the reason it is still such a popular option, to the point that people will pay extortionate amounts to do useless degrees.
If you're thrust straight into work that isn't stocking shelves or being a fry cook you won't be around people your own age and it's very alienating. I'm in my early 20s and have considered changing course despite having a successful SWE career to go back to university just so I can have a social life.