Joe,
Don't even think twice about joining the UAS and going to uni, especailly if you are in the position where your parents are going to be helping you finance!!
I'm in the third year of UAS, doing a non engineering degree. Meaning i can easily afford to go up to the airfield once a week... when we have aircraft that is!!
Have had an awesome time, learnt so much about military, especailly officer lifestyle... have had a small income over the last two years from the RAF and enjoyed a colourful social scene!
Doing EFT along side a degree is challenging, but if your good enough to be a pilot you'll breeze through it! the plus side is that once your graduate IOT you'll get streamed straight away and be flying the bigger boys toys!!