See the whole "feed, help grow and take care of" wasn't really part of the game/s at least as far as I played them. The emphasis was always on collecting. The show's tag-line, the PokeRap, every Game Boy game, the Pokemon Snap thing, even the card games were all based around the notion that you should CATCH 'EM ALL. So to see our protagonist not even try to do so was a bit frustrating. Me, I don't need an emotional bond with every single one of my Pokemon. Most of them just rot in Bill's PC.
BTW on what animal/s is the Nidoran family supposed to be based on anyway?