I tell my kids not to get tats. Its a fad that goes in cycles. Tell my daughter (17) that when you are 30 walking down the beach in a bikini with no ink, you will be the hottest thing around compared to your friends with these huge faded out grey blobs of mess spread out over their skin. Getting a tat is easy. Getting clear skin is not.
I have never met anyone with tats who did not have remorse over getting one or more of them. Learn from other peoples failures.