Schools and Halloween Costumes ban... what the Hell!?

In the past few years, there has been a culling in Halloween costumes in schools...
I kinda understand banning certain controversial costumes like say: Taliban, Hitler, Jesus Christ, Bhudda, and other costumes that may be considered offensive in nature towards certain groups.

No Thanos, no! You can't
erase racist costume Zack Morris!

But banning Superheroes, Dinosaurs, or anything that "isn't a profession or career" is downright stupid...
Sayong that superheroes incite violence whole allowing Soldier, Police, or Martial Artist instructor costumes is absurd.

The other excuse is that they frighten smaller children... So do Clowns and Santa Claus... but let me show you how stupid this whole dress as a profession or career is.

Normal clothes work for many careers... Movue Critics, Loss Prevention associates, Reality show contestant... just to name a few.
You could have a kid come wearing only a robe and it could be a writer, an artistic model, a bathrobe model.
Hell, I could have the kid wear the superhero costume, give him an empty Starbucks cup and print out a faux script and we have an actor or stunt double... which is a profession or career...
Also, what's the difference between an Alan Grant costume and a Paleontaologist costume?
Or Gregory House vs a Doctor...

Or how about dressing up my theoretical kid as Veteran suffering from PTSD that gets harassed by police?
It's a career... or the aftermath of said career...

What about OTHER professions or careers? What if the kid wants to come as an art thief? Or Terrorist, or Padre? Or wrestler? Is Timmy going to be in class wearing Speedos and a fancy robe Ric Flair style?  (I'm sticking to bous to avoid the "sexy halloween" jobs...)

Also, Halloween costumes are ridiculously expensive... I'm sure that little Johnny and little Mary won't wear their dentist costumes after that day... But they would wear their Ironman and Wonder Woman costume for weeks!

Let the kids have some fun, dammit!