From a mechanical point of view, a Force-sensitive player would want to max out both the Light side and the Dark side of the force in order to “max out” their ideal stats.
As much as this may be an affront to RP (at least to a Jedi and a Sith compared to a Grey Force User) and the lore setting, it does allow more freedom for the players to choose how they want to build their characters.
However, to those that adhere to strickly Light or Dark side only characters, they are now at a disadvantage. They won’t get as much stats for their force powers, and they also have less mechanical choices.
The suggestion is to limit the player into making choices down the line (inspiration taken from Naia’s ramblings on Discord):
A total of 100 light side and dark side skill ranks can be earned. Both will increase Cha the same amount for as long as a total of 100 is reached. Light side skills will increase Wis more than Int, Dark Side skills will increase Int more than Wis.
So Force users can only have 100 Light & 0 Dark, 75 Light & 25 Dark, 50 Light & 50 Dark, 66 Light & 34 Dark, and etc. for as long as the sum of both skills are 100.
I can also imagine there being 95 Light & 5 Dark split allowing the possibilities of 5 dark skills allow the first rank of Force Choke or something, at the cost of 100 Light side rank perks.
The downside I can think of would be that 50/50 split “neutral/gray force users” players might be less optimal than it is currently. So I’d also suggest a diminishing return of the above 50 rank perks at some point. Somehow attempt to achieve a balance while not punishing players for their RP preferences.