Not all parents are users of HN, if anything, we are vast minority. While perhaps setting parental controls is trying to be simple and parents can get somebody

Not all parents are users of HN, if anything, we are vast minority. While perhaps setting parental controls is trying to be simple and parents can get somebody's help with it, the second part like downloading video from youtube and playing it on VLC is way beyond most people. Especially that's not officially supported by YT.