I was exposed to hardcore pornography by friends at a young age. It's done incredible damage and has warped my perception of the opposite sex, it's taken years of active effort to combat it. I know many people in a similar situation. Having continued to attempt to quit addictive pornography the effects are real, being off of what I describe as a drug for a long period of time I can consciously identify changes in my perceptions of people. This doesn't get talked about enough, so much harm is being done.
But, I still think there are real issues here, regarding empowering parents to guide their children to appropriate resources and away from resources they view as negative (it’s not just sex, either, it’s stuff on YouTube as well). The tools just aren’t that good.
One thing I’d really like on YouTube is the ability to accept YouTube’s default recommendations, but then whitelist/blacklist additional channels at my discretion. Currently it’s YouTube’s recommendations, or curate everything yourself, making the latter really hard.
Advertisements were a big problem in our house at first. Every toy was enticing, but the fast cuts and up-tempo music made them look more fun to play with than they actually were. Have you tried asking them about motivation? Like, those YouTube channels you don't want them to watch were made deliberately, but for what purpose?
Making something forbidden doesn't make it any less misleading, you know? It's the ability to question it that takes away that power.
But I look on Pornhub, and the idea that that might be my children's first impression of sex makes me sad. Its fine for adults, but not good for forming accurate impressions of how to connect with another human being.
My favorite book so far, by far, has been "The Hush Factor" by Karen Rayne. It has almost nothing about sex itself, its almost all about communicating with emerging adults (it would really be good for anyone who has a teenager). But its key thesis is that you are trying to help your children develop the capacity to have healthy sexual relationships.
I think the people downvoting this comment probably don't have kids this age (if you do, I'd be curious to hear your perspective). But I love my kids, and I care about all the kids that age and hope they will find good, healthy partners to sleep with eventually.
I have wondered, actually, if the solution is a 'whitelist' porn sex site for teenagers. A site that parents can pay for, configure to show the kind of material they think is appropriate for their child (including maybe some teen friendly presentation of topics like consent, how to kiss, etc etc). Then, parents can block things like pornhub and give access to the approved site. I'm not sex negative, but I care about my kids developing positive sexual relationships.