At 12, children are already quite independent online, but they don’t always understand all the risks, so a desire for some control isn’t excessive, but rather a concern. From a practical standpoint, there are indeed special solutions for parents, such as the uMobix parental monitoring app which allow you to see which apps are being used, how much time your child spends on the phone, and get a general overview of their activity. This isn’t meant for total control, but rather to spot suspicious connections early.