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.
Even as someone who is quite tech savvy, it’s difficult to control access to this kind of material. This specific effort may be heavy handed, but there is a problem here that I believe is real and deserves attention.