I wouldn't keep making a new "totally-not-Pidgey" and "totally-not-Rattata" every generation. Or if I had to I'd do it more like Gen II where Sentret and Hoot-Hoot were different enough and coexisted in the wild, and not just a reskinned complete replacement.
That's where a lot of the bloat in numbers is coming from, making the same damn thing over and over again where existing Pokemon will do.
That's where a lot of the bloat in numbers is coming from, making the same damn thing over and over again where existing Pokemon will do.