Is there an age limit for tattoos?

pu1. I know it's only for adults

2017-12-13

OK

pu2. It's only possible if you're over 18 years old

2017-12-13

OK

pu3. To be exact, tattoos themselves are illegal before age. It's like I'm doing it secretly. If you get a tattoo when you're too young, you'll regret it later, so it's an implicit agreement that tattooers only do it when they're adults

2017-12-13

OK