Makes it feel a bit too much like slavery. I'd like to think that 'owernship' of Gardevoir and related evolutions would be regulated for their benefit.
That raises the question, which is also raised here:https://www.theworldofpokemon.com/difficulty.html
Which Pokemon would realistically face a great deal of regulation? Requiring special permits and such granted only through connections and/or demonstration of appropriate skills, knowledge, and resources?
I can imagine psychic types being age prohibited because any, especially one like Gardevoir that wants a psychic bond, could have an affect on the development of a human child. Not a good idea to mess with their heads. As well, they have special emotional needs.
Koffing or Grimer, and their evolutions, could be unintentionally dangerous to others. Can't just have them running about freely.