Hmm, no more than other Pokémon, I think? There are special considerations, yup. Dietary concerns and other things. And sometimes you have to get them used to certain things slowly, I hear. But a lot of Pokémon have those.

[ Joltik need supplemental electricity, Litwick like to take nibbles of life force, Durant and Crustle get extra rocks and minerals as needed, some cave dwelling Pokémon can be extra sensitive to sudden bright lights... ]

For me? Zephy was a lot like a newly hatched Pokémon in a lot of ways. Stronger, though. [ a big baby with strongly ingrained battle instincts aaaand maybe prey drive. ] Had to make sure he didn't try to chase too many things, yup. But it didn't seem hard for him I don't think. And he's definitely a cheerful Pokémon overall!

[ well, as long as Defeatist isn't in effect, anyway. but otherwise, Jolly nature. ]