Those are great examples because they show that leaving it all up to the individual is not enough. All of those are regulated by the state because we as a society recognised they were doing their damnest to screw everyone else for their own gain. Social media is going the same route, with several countries already introducing bills to prohibit them to minors.
There is another discussion to be had if we’re going about it the right way (I certainly do not support privacy invasion in the form of age checks), but it does show we’re recognising its harm.
