Is the "university experience" worth declining an apprenticeship?

I just got an apprenticeship offer from a top investment bank (with Queen Mary), but I'm scared I'm going to miss out on the social life and the university experience. My question is whether it's worth it to turn this down so I can pursue a more "fun" university education and lifestyle? Would love to hear your experiences at uni, in terms of fun and social life, mostly.

Edit: It's a technology apprenticeship but at an investment bank

Edit 2: To clarify, I am also applying for Imperial (although unlikely to get it), but I have Manchester banked (both CS). And I live in London (so I wouldn't have rent costs).

Edit 3: I also don't really like partying, and I have no plans to drink, which is a large part of the uni experience??