There have been loads of threads on the subject about as divisive as Brexit. Personal choice I know, one of my sons has I think 4 on his arms, we hate them. When I was growing up they were socially unacceptable, yes times have changed, but wild horses wouldn't induce me to have one. I know it's deemed lofty to say this but my personal point of view is that they always look tacky and I agree with you nanna8. I think they spoil lovely limbs on young people particularly come summer and you want to get arms and legs out. If you've reached a certain age without them, can't understand why you would then get one. David Dimbleby and Felicity Kendall spring to mind, skin ages and tattoos disappear into folds and wrinkles, as for getting one on your back as DD has done, what's the point I can't imagine he's going to walk around with his shirt off other than maybe on the beach.
I know some people tattoo memories on themselves, my husband lost a son and our son then had a tattoo commemorating his brother. My husband hated that, he told our son, "do you honestly think I need a bit of writing on my body to remind myself that x existed he will always be in my heart" However he accepts that our son is part of a generation who have to make an outward show of their feelings and don't understand stoicism.