Like i said, if you're wearing it, you ain't living it'. It's a false testimony to who you are. A canvas lasts for others to enjoy, it is not an irreversible process, it proves nothing, very few others get any fulfilment out of it, ... but, if I learnt to play guitar, that's a skillset that overlaps into other disciplines, and allows many others to be both inspired, and to enjoy.
What do you mean others don't get any fulfillment out of it? I check out peoples' tattoos all the time and vice versa. Perhaps you're just not interested in tattoos, and projecting the feeling of uselessness that you feel about them?