Just wondering…
I say the kid decides!!! 
12 at the latest with two conditions
- Go around after the little ones have had their turn. Put some effort into a costume.
- Taking a younger sibling out. Still should have a costume but accept candy only when offered.
Anyone can come to my house regardless of age or costume, if any. Lots of little kids out on Halloween walking around in the dark, please be very careful and keep an eye out for them. They are adorable!
It’s hard to give a definite age, but my criteria get harsher as the kids get older.
12, 13, 14 - with a great costume, and taking little kids around with them, and being polite and engaging … this is fine with me.
In our old neighborhood, there was a group of teenagers who made a big thing of Halloween, and would dress up all in a theme (vampires, zombies, etc) and then sing acappella when you answered the door, songs like Monster Mash or other oldies. It was like Halloween caroling. It was terrific and I was more than happy to hand out the candy.
I voted ‘14’ but it does matter about how the kid acts.
Helping out the little kids by taking them along (even to the scary house) is a great idea that should be promoted.
Just going on what I would like to see at my front door, I said under 12. Really, this is a kids’ thing, teenagers have lots of other things to think about.
Roddy
Anyone that shows up at my door wearing a legitimate attempt at a Halloween costume receives candy or mini-box of raisans even if they are a senior citizen.
For jehova witnesses, at birth.
When the bag fills up.
Through high school, if the kid dresses up, it’s cool.
That is crazy talk - after clicking your link I sincerely wish at least a few of the latter would drop by my house on halloween.
Sixth or Seventh grade was my last time. For “should stop” I put 12.
2 AM
Let the kid do it until he is ready to stop.
When they’re old enough to start liquor-treating.
I’m happy to give candy to any older child/teen that makes a good effort at a costume. I will also offer candy to uncostumed kids who are obviously supervising younger siblings. The only really annoying ones are loud rowdy teens that show up late and don’t even try.
Yeah, the J.W.s don’t like it when strange people come up to their house and ring the doorbell…
This. Except at my house, they’ll get yoyos and stickers this year. 
The whole point of Halloween is to teach kids two important lessons: 1. It’s good to get out of the house and explore the world around you. 2. If you’re polite and follow rules, you’ll be rewarded.
Give them 3-5 years for the lessons to sink in, and after that keep them in, turn the TV to a Halloween special, and let them have a big bowl of powdered coconut or almond clusters.
No, really.