Yes, I will include "the Force is strong in your family" in this hot take. I know it's too late to wind decades of Force calipers and space eugenics back now, but it would have been a lot better if that "energy field that surrounds and binds all living things" had an ebb and flow, came and went, and was more about timing and what's going on where (you know, like an energy field) than "the most specialist special people have more fuckulons than you do, you mundane peasant."
I haven't seen a Star War in some time 
but maybe if something comes along that does space magic in a less calipersy way I'd check it out instead.
Oh well. We'll always have Glup Shitto. 
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Any combat-centric franchise will develop power levels, given enough time. People want a tier list, a scouter, a number on a bounty poster, or a midichlorian count.
Tying it to bloodlines is a lazy model, but also gives you loads of popular tropes for free. Glup Shitto Jr will be relevant from appearance 1 due to inherited power levels, and then you don't have to devise a bunch of complex worldbuilding and backstory to show how a 100% new character got the caprice of the fates.
Are there any stories where magic powers aren't inherited? I can think of Frieren and The Magicians, but I think that's it? My LotR knowledge is limited, but I don't recall magic being genetic. Although I don't think many mortals in LotR can even perform magic.
or you could just... have their dad teach them lol you don't even need the weird "runs in the family" stuff to have a heir be a thing