In America (and elsewhere?) we have a tradition of trick-or-treating where on Halloween or the night before kids go around the neighborhood in a costume, knock on doors, and get candy. It’s a lot of fun.
But I was well into adulthood before I learned that not all places have kids tell jokes before they get candy. Apparently it’s only the city I grew up in that they do that! Not even neighboring cities do it.
Where I’m from Halloween you go around and ask for candy, the historical implication being you’d vandalize the property of or otherwise harass in costume anyone who refused. Which followed Cabbage Night, where you would TP people’s houses under the cover of darkness.