Just two remarks from my side:
- Get your degree if you are really interested in the subject. It will broaden your horizon much more than watching the autopilot fly your airliner eight hours a day for forty years. And it will provide you with a plan B if circumstances arise that will prevent you from flying (economic downturn, loss of medical (even if only temporary), boredom - I know plenty of pilots who just quit because they couldn't just stand it any more).
- Don't get a degree if it is only to please someone, in your case your mother. You will probably not finish it and only waste time and money.
My own background is degree first and flying next, and I am glad I did it. I was never unemployed for a single day, because there was always some work to be found. Qualified, interesting and demanding work, that is, not frying burgers while waiting for airlines to answer my applications.
And if, after 40 years of working, I had to chose between the two, I would take the university-degree profession and fly privately in my spare time.