I doubt that. For example, look at iOS "parental controls". Judging by screenshots [1] here, it is a complicated system that requires a parent to be a system ad

I doubt that. For example, look at iOS "parental controls". Judging by screenshots [1] here, it is a complicated system that requires a parent to be a system administrator not to get lost in hundreds of settings. For example, you might have to manually compile a white list of websites, white list of apps etc. The system is so complicated that I think many parents simply get confused and do not want to use it. Instead there should be a single checkbox: "allow safe content only on this device". That's all (and you can leave detailed settings for system administrators). [1] https://www.internetmatters.org/parental-controls/smartphones-and-other-devices/apple-iphone-and-ipad-parental-control-guide/ https://www.internetmatters.org/parental-controls/smartphone...