I think jump shot is just another skill. If you are comfortable with kicks and banks, then I'd suggest to improve on those first.
Jumping is like kicking or banking or any other more advanced skills. Up to a certain competition level, utilizing those skills don't significantly improve the winning probability any more than without using them.
That is to say, jump shot is not an efficient skill to use unless the opponent can run racks (i.e. not your average moms/pops player).
I'm at the stage where my skills are decent with banking and kicking, but I want to add skills to my arsenal. I won't get to use it in a game due to local house rules. But I love the game enough to want to learn everything that I can to improve in the sport. For that reason, I'm going to start practicing jump shots despite not getting to use it during league nights.
Maybe you also have deep passion with the sport. In that case, you'd naturally want to improve your skills regardless. Not to be able to win more games but to be better than yesterday.