Indeed, you will probably find out there more pilots without a Degree than with one, some airlines require a degree of some sort for sponsorships others will require a degree purely to keep down the level of applications they might receive for a vacant position, but why not do one? It is advisable to have a plan B of some sort just in case aviation doesn’t work out. Aviation is unstable, one day you might have a job and the next day nothing.
It is of my opinion and many others that investing in further education is essential for personal development and career as well.
In this case it all helps you not to be the best pilot but to be a “better” pilot.