Wait, don't scroll! there is a reasonable explanation to the madness.
The muggles out there has a lot of overrated things from very bad movies to weird food combos, and so it's logical that the wizarding world would have it's own... quircks.
Now, we know about a few animaguses. James, Pitter (aham you piece of trash go to Azkaban aham), and they had proven themselves useful.
If a bunch of kids managed to become animaguses in one year all by themselves, why doens't everyone do it?
Alright, alright. maybe "ordinary" people in the wizarding world don't really need this kind of adventage, but what stops big-bad-guys like Grindelwold or Voldemort or (yes, I am putting her here because she is the worst of them all) Umbridge (ew) to do just what James did?
So many talented potion makers, like Snape? i bet for him it would be a piece of cake to make something like that.
Just wondering.