What the Internet does change is granularity of controls. With physical goods, parents can choose to give children travel magazines but not porn magazines. With Internet, parents don't always have a choice to give children a device to read travel websites but not porn websites.
Solving that granularity is all we need! And the good news - it's already largely solved: just give your kids one of the locked down phones/tables with parental controls (i.e., almost any phone/tablet today).
The law can and should make a few things better: - introduce minimal requirements for parental controls, certify devices as kids safe (i.e., implementing these requirements) - ideally, require websites to tag content - same way we tag it on TV for ages; this one is harder to enforce in practice (what about offshore websites?) but also not really needed - AI can tag content pretty well as part of parental controls
I know all of this was said before many times, but somehow it feels not enough people understand it.