Hi there Croce,
In my experience, whether you have a University degree, or not, it does not seem currently to be a pre-requisite for an airline career with Australian or Asian carriers. I can't speak for European or American ones.
I spent three years gaining a Bachelor of Science in Aviation, and then a further 1.5 years gaining a Masters degree in Finance. I have found that although these are taken into consideration when looking for work as a pilot they are in no way guarantees of a job over someone who has chosen not to pursue a University degree.
From a purely non-aviation focus, a great time can be had at University and it is a good place to meet like-minded people, as well as the positive social aspects.
I don't know your age, but if you have time in your favour, a University degree can look good on your resume, and may provide a useful back-up when times are rough in the aviation industry.
Cheers
Curvature