>>53259167Magby, Elekid, and Smoochum are early-game versions of Pokemon lines that would have to be restricted to lategame without them, so they are justified in existing.
Pichu, Togepi, Cleffa, Mime Jr, Munchlax, and Wynaut are cute.
The rest don't have any reason to exist - especially Riolu and Toxel, which were introduced in the same game as their evolved forms and the fact that they can't breed is arbitrary and stupid.
also I hate toxel so much holy shit that's gotta be one of the worst designs in the series