The kids in my family were well protected and supervised, they got into contact with hardcore porn at the age of 6 when other kids had access to smartphones and exposed them to it.
I would like to see a honest discussion about the impact of porn on kids, I cannot really imagine that it doesn't distort the view and expectations on sex.
In my 20s I was promiscious and lived what I saw in pornography, only later in life I learned about normal sex.
In germany we had a state sponsored porn flick once produced by ZDF Neo, maybe that is the approach to expose the kids to material that shows sex as a respectable flow rather than an extreme fantasy.