Carl, clearly different ideas of fun...
Are University academics really relaxed about students whose prioritisation of clubbing over other activities means they are barely attending? I accept that young people are adults, but they can also be daft, and presumably benefit from guidance.
Is your son taking a science subject? DD knows some at Cambridge who are able to engage in a wide variety of activities on top of their courses, but others who really have to work almost all the time.
One of the reasons DD did not apply to Oxbridge was that she wanted the additional teaching time and headroom which would allow her to balance academic, with other stuff. However she still needs to do quite a lot of study, plus has a lot of early starts, so is frustrated that for some, clubbing is the only thing that seems to matter, with the implication that if you are not out every night having "fun" you are somehow sad. And that this justifies shabby treatment of flatmates who may being having to work harder.
It is clear that many parents are quite relaxed. They are the ones who are topping up, now loans have run out.