Adult Dress Up?

Maybe it's just me, but is anybody else bothered by adults that dress up in costumes for Halloween? I guess I'm just an old fuddy duddy but there's just something wrong with grown ups wanting to pretend their somebody different then themselves. It's just not natural.

There's a lot of it around Halloween but seems like there's a lot of other adult dress up going on too. I see pictures of teachers in the schools having special dress up days. Even one of our "premier" community organizations is advertizing their upcoming event as a Masquerade Gala.

So why is it that so many grown adults fell compelled to wear costumes in public?

I can't figure it out.