Is it normal for housecats to spend time outside? I have two. One is fully indoors, the other goes out 2-3 times per week, for maybe a half hour, and doesn’t venture past our back patio. No hunting that I’m aware of, and definitely no pooping in the neighbor’s garden.
The problem is not access, it’s unlimited instant access. We had to wait until our parents weren’t home to raid Dad’s stash. Or catch a tape from someone’s uncle at a sleepover. It’s a world of difference.
That being said, blocking is not the answer. Blocking the major sites just pushes people to smaller sites, which may be more likely to harbor revenge porn, underage content, nonconsensual content, etc.