It's driving me crazy the amount of skills that fall under fitness and don't have their own skill

I think there's a missed opportunity in the cooking/gourmet cooking approach. It should extend to other skill categories, too. First sims level fitness (or logic or handyness), and then they can branch out into related skills like swimming, climbing, basketball, bowling, lightsaber fencing etc. Especially for piano -> pipe organ that progression would make sense.