Tomie isn’t as meme-ified as Amigara fault, or as widely adapted as Uzumaki, but is another of his bigger works, would recommend!
Also, you may have seen a few images from Uzumaki (the hair, the face) but the story is quite long and really unsettling! Would still recommend giving it a read.
It was last revised under the Criminal Law Amendment Act 1885 where it was raised from 13 to 16… so I would think it probably was designed exactly that way. None of the parliaments in the UK seem to have any intention of raising it.