For someone like me, the best time to start studying music properly and learning to play bass properly is roughly 50 years ago.
I'm well aware that the next line is supposed to go: and the next best time is now.
But actually I'm not convinced.
With any luck, I'll have another 15 years of active playing ahead of me. I really don't fancy devoting maybe the first (and best) five of those to playing scales and arpeggios, and studying modes.
That would almost certainly improve my playing (I'm setting the bar low here) by making it possible for me to do all sorts of things which I cannot now do and ... erm ... can't honestly say that I miss much.
Techniques like slapping, tapping and sweeping are of less than zero interest to me. Playing bass solos strikes me as one of the least attractive aspects of rock music. Pinch harmonics? In 1970s pop music? I don't think so.
How many great rock songs are in the Phrygian mode? Somebody start a list would you.
I'm not sneering at musical knowledge or study. I'm simply pointing out that there are far too many people out there - and here on Basschat - who declaim as a matter of proven fact that it is always better to study music.
Bollocks.
Horses for courses, and moderation in all things.