Here's a slightly different viewpoint for you. It all depends on the kind of person you are, and how mature you are for your years.
In my experience, a majority of the management pilots and training Captains I've known were not university graduates - they would have viewed it as a waste of time when they could have been getting on with flying. Either in the forces or more commonly in fact, instructing and air taxi etc. They started flying young, and therefore had an advantage in terms of thousands of hours of experience by the time the university types were just getting round to starting their training. Result, you join an airline and your Captain is younger than you and vastly more experienced.
I'm not saying one way is better than the other, because often their lack of university education showed itself in a very narrow and sometimes uncomfortably intense view of the world. Not the most exciting conversationalists that's for sure. But they were well up the rungs on that ladder, becoming fleet managers etc at a very young age.
Having said that, things are probably changing somewhat now, with airlines perhaps demanding the more typical graduate pilot manager, but this is not always the case.
So really, it comes down to you. Would you prefer to start into the very serious and sometimes boring world of real work now, but get your foot on the ladder early, or delay it by three or four years and have some mindless fun, but perhaps have Captains who are younger than you?
Your own reactions to that should give you the answer.