What Age is Too Old For Trick or Treating?

Should there be a cut off age for trick-or-treating, or is the October 31 candy grab good for all ages?

For me, Halloween is for all ages and I'm for everyone dressing up and having fun; However, when it comes to the trick-or-treat part of it, I think that is for the kids. If you're old enough to be able to buy candy, you shouldn't be trick-or-treating.

I've never understood parents with infants collecting candy (is that 3 month old really going to eat a Butterfinger?)... teenagers with their own natural facial hair and 38C cups asking for candy...and don't even get me going about the 20 somethings who don't even bother dressing up, and ring the doorbell!

So please take The Mike Show South Jersey Survey. What should be the cut off age for trick-or-treating?