Should Mr. Mime have gender differences or only be male? Should Mime Jr.?
It's too late to go back and change old Pokemon. If they did it for Mr.Mime, what about:
-Primarina & Brionne
It's just not doable anymore... kinda sad, though...
@Acornyo Good point
Neither, just keep it as it is. It doesn't really matter, and it gives funny but lazy name options for when you don't feel like thinking of an actual name (Ms. Mime in this case). It's actually kinda cool, even without the lazy nicknames, to be honest.
No. Putting "Mr." in the name was just a poor choice by localizers. The Japanese name doesn't have this issue.