There's not a privacy preserving way because children are smart. I don't think we should enable more surveillance for the flimsy "think of the children " argument.
Speaking of "think of the children", I have a conspiracy theory that the PMRC[0] was less about Dee Snider and Cyndi Lauper and more about creating a labelling regime that could ensure english-lyric Eurodisco[1] tunes wouldn't get any US distribution.
082349872349872|1 year ago
[0] https://en.wikipedia.org/wiki/Parents_Music_Resource_Center
[1] eg https://en.wikipedia.org/wiki/Bad_Boys_Blue