>>714224039 (OP)
Those are Professor Oak's privately owned pokemon, and he can do with them as he wills. That includes giving them to his grandson and future son-in-law.
Nurse Joys are products of gene editing and cloning and they're probably only working at pokecenters because they're genetically predisposed to wanting to work there. As long as they're happy, right?
>>714224039 (OP)
if you had read the "the animation" novel, you'd know the league is sketchy and corrupt as fuck, with gym leaders barely managing to keep lights on and bribing trainers to win and avoid losing their jobs. along with other gruesome details like the fact that pikachu that evolve and fail to learn to control their electricity shock themselves into cardiac arrest.