@crimsondevil2903 you forgot this part, lol:
And even if they were to tighten level 1 & 2, this is what would happen:
JP daddy: Ughh, my sons read my porn mags without my permission, gotta spank them!
*spank them*
JP daddy: Wtf? How did MD (the boy living next door) sneak into my house and make copies of my mags?
MD (snickering from afar): Fufufu. These are some good shit.
JP daddy: Ughh, I wanna spank him until he's unable to walk, but
he's not my kid, I can't do that. Guess I'll have to ask his pop to spank him.
MD's pop: MD, Mr. JP told me you stole his mags. What shall I do with you?
MD: I'll let you read them with me, pop.
MD's pop: ...interesting.
For those who are curious and want to check the validity of the info I summed up in the picture above, this is where you should visit: https://www.bunka.go.jp/seisaku/chosakuken/hokaisei/r02_hokaisei/ (official documents regarding the law from the Agency for Cultural Affairs of Japan).