Who doesn't like to get candy just for dressing up as a zombie, a princess, a superhero, etc?
As for me, I've been trick-or-treating ever since I was four, and have been doing it since last Halloween.
Once you enter high school, however, the common question, " Am I too old to go trick-or-treating?" arises.
As a result, some teens do stop roaming the streets, dressed in costumes ringing doorbells for candy.
On the other hand, some do continue the old tradition of "trick-or-treating."
In my opinion, I believe "trick-or-treating" is appropriate for any age, and is great way to celebrate the once-a-year holiday with friends and family.... not to mention candy.