I went to university and loved every second of it. I did an Aviation degree and got a PPL at the same time. Im working as an Avionic technician on Apache helicopters in the Army now, sticking away £800 a month, and flying regularly for pleasure. My plan is to leave the army in 3yrs at the age of 28 and spend £30k of saved cash on a CPL after which I'll have NO debt.
But to be honest, I love my job and PPL flying so much, I may not bother! Remember, you can do all sorts of cool flying with just a private licence. You should certainly go to uni, take your time and sample the beer and ladies. If you can get a degree it will help you immeasurably throughout your next 45 years of working life. Qualifying for a commercial licence at 30 is perfectly reasonable.