FWIW, on iOS, the you're asked for each app that wants access to ___location services. Further, you can turn this off globally for all apps, or individually for apps in the Settings app. Even further, you can lock down the settings app with a passcode required to make changes.

So, parents can lock down the settings for ___location services so that their kids... (whom I assume just say "yes" when running an app that asks for access to it) can't leak their ___location.