Aspiring Lurker (He/Him)
Like many of the others here, I sometimes use the backstories, and I sometimes do not. I like having the option, though. I'm running a homebrew setting, and there are blank spaces in the map where it's easy to put things if a character's backstory calls for it. I'm willing to fit events in, if needed, too. I do not, however, allow players to "dictate" what goes into my world. I'll work with them, but I have the final say.