One day is set aside to go from door to door asking for free stuff. One day is set aside to eat all the dry-derriere turkey you can fit in your stomach. One day is set aside for a fat-derriere to come down your chimney and deliver presents to kids. I know. Shocking that we have these things called "holidays."
Don't accept candy from strangers, except this one time.
Don't go asking for free stuff from people, except this one time.
Holidays are a time for us to take a break from the drudgery of every day life, not go out and do plainly stupid and irritating things. Why am I the poopchute if I don't buy candy for your kids? Also, Halloween isn't a holiday. It's this strange excuse for people to do really nonsensical and irritating things.
People going out in costume one night a year is cool. They're probably having a lot more fun than you.
Needing to put on a costume to have fun isn't normal behaviour. That's just freaking strange.
It's not weird. You're a grouch.
It's weird. You don't see it because you've grown up with it, but with the objective eye of an outsider, trust me. Really freaking weird.