Whether the establishment (the 'vendor') is licensed or not, is selling flowers, is run by cowboys or entails a discussion about Chesterton's fence isn't the focus of the analogy. We don't know whether it is or isn't licensed; but we do know that porn is made available to children. Any discussion about licensing laws and evidence collecting would probably entail a bureaucratic rabbit hole...meanwhile - well, the consequences have already been laid out.
Meh. Seems to me like you're the one who isn't interested in engaging. You don't need a whole convoluted analogy to talk about the idea of porn being 'made available to children.'
Any hedonistic thing being 'made available to children' bothers me pretty much in proportion to how actually damaging/addictive/etc it is. Sugar. Soft drugs. Hard drugs. Alcohol. Vapes. Nicotine. Gambling. Porn. TV. Internet video content. Social media.
Porn is an interesting one because in this context, we are talking about something decoupled from direct financial interest. For this list that's pretty much just unpaid porn, TV/internet video content, and social media. It's a different question than if a kid would be, or quickly get, naturally interested in the high of hard drugs or the buzz of alcohol or the perceived relief of nicotine because nobody is giving them any for free. Nobody is 'making it available' and anyone that could would be in trouble with the law. Well, sugar, yeah, but that's a whole nother can of worms.
Except of course, alcohol in the home, which often happens with close parental supervision and in small amounts is seen as very nearly harmless. You can have a little, but it's mainly for adults, it's not that mysterious, and you have no reason to want it anyway.
But TV, internet video, social media, and free porn sites: yes, children - at least, savvy children, can access all of those if they really set out to. But so could they back in the day, even porn, as countless stories of semi-legendary porno magazine stashes or waiting for the clear moments of scrambled cable PPV will tell you. The question to me is why would they want to? Young kids are either uninterested or dispassionately curious, or want something to shock their friends with. Older kids are on their way to adulthood anyway.
The more realistic, historical version has been porno mags left where adventurous or curious kids could find them - not FOR them, mind you, but nobody was in a position to stop them. And they'd usually need to be intrepid enough to go on a little bit of a hike or follow a bit of gossip. I'm not actually against that at all.
If the main thrust of the pearl clutchers was to get porn that directly encourages violence behind paywalls I'd be on board. But I haven't seen any evidence that I find compelling that suggests that kids are swimming in that sort of stuff online. The worst stuff that gets served up when I go looking for what I actually want to see are performers that look like they're blitzed or don't want to be there.
Meanwhile in the US we somehow decided to start letting every-◊◊◊◊◊◊◊-body advertise gambling on every available surface. I find that far more ubiquitous and far more disgusting than porn. And big, BIG money is being made there, off the backs of people who absolutely cannot afford it. Put it back where it was - like porn, available, but you have to go looking for it. So yeah. I think the advertising for porn should be treated like the advertising for gambling USED TO BE and I think the advertising for gambling should be put back that way too!
Thank you for coming to my TED talk.