It causes nauseating lag in battlegrounds. It shows real names to people you don't know through friends of friends. It doesn't let you display as a character name. And for people who for some reason actually like it, it doesn't even work all the time.

So given all that, if I go through the hassle of setting up parental controls on my own account, just so I can disable it, because there's no option to do so in-game, could you at least leave it that way?

Those concerns have been addressed in the thread Answers to Common Community Questions Real ID. Use that thread if there are additional concerns or feedback.

Answers to Common Community Questions Real ID