I'm 64 and been playing and gigging since I was 12 years old.
The whole experience is still a blast for me, 4 hour bar gigs, festivals, fairs, practicing and rehearsals.
I don't think age matters unless your goal is to be a pop star.
What matters is,
Is it realistic for you
Do you have the time
Are you passionate about it.
You get out of it what your willing to put into it.
Blue