I'm in a very similar situation to you. I have decided to pursue a career as a pilot rather than go to university. If you want to go to university, do a course that you would enjoy. At the end of the day, it really doesn't matter what the subject is when you're looking for a job as a pilot. Don't feel pressured into going to university by your teachers either. To quote an old teacher of mine, "You should be going to top universities, U.C.C, Trinity, Ivy League colleges, Cambridge, etc. Forget about anything else".