> because some other parents won’t activate it, which then makes the situation unfair for the kids. I’d much rather have it on by default so that all kids are treated the same.

That’s a strange argument. The government or anyone doesn’t have a mandate to ensure everyone has the exact same experience. Differences in upbringing are normal. I didn’t have a TV growing up while most of my friends did. It might have felt unfair at the time, but it wouldn’t justify the government forcing my parents to get one -> overreach.