Walesregent is 100% correct. That is by far the best option. If you could go either way with what you want to do, study both concurrently.
If at the end of your degree you choose to fly, so be it. At least you have another useful non aviation related qualification that wont be affected by the standard peaks and troughs this fickle industry throws forth. If you choose to follow your formal qualification then aviation will still be waiting and by moonlighting on weekends or holidays you can still keep the hours and contacts rolling in. At least in this option you'll be well poised if, in your later years, you do choose to jump ship into aviation.
I said it in another thread but this is the only path I would ever recommend a student who considering a career in aviation.