Just an open question since we keep getting situations like this where the industry effectively admits it is incapable and unwilling to act to stop the worst elements of the industry (child exploitation, human trafficking, forced involvement, rape etc) that it's probably best to just ban the industry together.
Notice though I said using real people, with AI slowly getting better and CGI improving, why do we need real people to make porn? Just have something animated to be realistic enough as I don't give a fuck about pixels or a drawing. Have whatever kink you want, have entire porn snuff films whatever as no REAL people are getting harmed in the making if it. The worst that can happen is stressed artists trying to meet deadlines.
This might also affect adult streamers which is just a bonus as it'll be like a re-run of Projekt Melody when she became more popular since she did more than just strip and stare blankly at the camera till donations came in. A lot of porn or porn in all but name streaming (which I include Twitch on that) get money off just simply being pretty and that's it, denying that as an easy route will probably cause a shift in a lot of media.
I wouldn't advocate a FULL ban as no matter your feeling on it generally, it is a release so going full puritan invites a backlash and probably just forces more men to deal with insufferable feminist women. But just making that release fully fictional based than support an industry that sweeps horrific practices under the rug for money is probably for the best.
I'm philosophically libertarian but the "it's up to the parents" argument is where I part ways with you. The libertine experiment has proved that too many parents don't give a shit what happens to their kids, and society will go to hell in a handbasket because of them. It's not acceptable for anyone with the ability to take responsibility to shrug their shoulders at our youth being corrupted and say "Heh, all these loser men and evil women must have bad parents. Oh well!"
On the other hand if you don't think minors accessing porn harms society, then I don't see why minors shouldn't access porn. It would indeed be up to the parents. Like some parents don't let their kids drink soda or stay up late and some do.