And hey, before Internet they also were watching anything they wanted anyway - it only takes one kid who gets a VHS from somewhere (e.g. from an older brother)...
Using a smartphone to watch a horror or porn flick without adults noticing is much easier than what it was to sneak to someone's home with a CRT TV and a VHS recorder and a cassette to watch.
Not that kids didn't see bad things in the bad old times - they probably saw more of it in real life - but the ubiquitousness of these devices is not necessarily only a good thing.
I agree. The point is, kids back then (which includes myself) had their ways. You want some porn or horror/action movie? That's what older brothers are for ;).