I really don't understand people who give a hard time to older trick-or-treaters. If you're generous enough to participate in giving out treats on Halloween, why would you suddenly become a Halloween Scrooge by being mean to older trick-or-treaters?!? As long as they're in costume, and are being polite, what is the big problem?!? Especially when it's older teens... I mean, think of the other things they could be out doing (which I won't even list here), but instead they're choosing to participate in a happy, harmless community tradition. In what way is this an offense to someone?!? Are the extra 5 or 10 pieces of candy someone might give out to older trick-or-treaters over the course of the night really going to break the bank?? I just don't get it.
I also sympathize with a previous poster who wrote about his tall (but only 11 year old) daughter getting hassled. Having been over 6 foot tall while still in elementary school, I can totally relate. How do you know how old someone in a costume is, just because they're tall?! You don't.
I say if a trick-or-treater is in costume, and being polite, toss them some candy! If you're going to be cool by participating in giving out treats on Halloween, don't undo your coolness with ageism.