Based on your (and a lot of other posters) comments. Whenever tattoos etc are mentioned on MN it becomes a thread of people saying unpleasant things about other people's bodies and the choices they make with them.
My children have been raised surrounded by lots of different types of people, and for this context, both completely non-tattooed and extremely heavily tattooed people. It's normalised, there is not curious excitement about them, they are day to day sights and they've expressed absolutely zero interest in rushing out to get anything tattooed at 18, let alone their face.
Your comments are strange and arguably a bit inflammatory, very very few people at 18 have facial tattoos and those that do, an even smaller percentage (microscopic, I'll put money on it) would have had them done by anyone reputable.
Generally speaking, any tattoo artist worth anything won't tattoo hands/faces/necks etc of people who are young and not already heavily tattooed.
The age raising limit question is a laughable one. You can enlist in the army and become front line canon fodder, but you couldn't legally have a facial tattoo. What fantastic priorities.