Car seats? Seat belts? Curfews? Hospital reporting laws? Child safety standards? Mandatory smoke detectors? Curriculum standards? Mandatory education?
All not necessary if parents just did their jobs, right?
On that note, the US government states in their own papers in the SCOTUS case that parental control filtering is so niche, that it is at the level of complete irrelevancy in fulfilling the government’s interest in preventing children from viewing porn. One SCOTUS judge with children has already said that in her experience, it’s impossibly complex even for a devoted parent.
Tech can’t point to parental controls when they failed miserably in their implementation.