Why Is Candy Passed Out on Halloween?

Where exactly the tradition of trick or treating started is a matter of some debate. But when the custom first came to America in the 1920s and 30s, it wasn't just kids going door to door for candy. The practice back then would yield all sorts of treats including toys and money. And let's be honest, if you're a kid, you love candy, but you probably wouldn't have minded if you got a few less bags of candy corn and a bit more cash. So why did we make the transition to virtually everyone just giving fun-sized candy? You guessed it, the candy companies. They saw an opportunity and started marketing tiny, individually wrapped candies to families who mostly adopted the idea because it was just easier.