I have 3 kids between 7 and 12. Both PCs and Chromebooks have parental controls that are okay but not stellar. For PCs, Microsoft lets you set up profiles for

I have 3 kids between 7 and 12. Both PCs and Chromebooks have parental controls that are okay but not stellar. For PCs, Microsoft lets you set up profiles for your kids where you can specify what apps they can access, and for web access you can either go with a Microsoft-selected whitelist or build your own white/blacklists. We as parents get a weekly activity report showing what sites they spent the most time on and what disallowed sites they tried to access. Obviously, this doesn't align with your privacy objective, but frankly, until my kids are able to keep themselves safe online without parental supervision, the slight infringement on their privacy is a reasonable trade-off.