Question: What’s the thinking or energy behind getting a full Face Tattoo?… Full body?

A friend just got a full on face tattoo and although I am supportive… it’s a lot.

I like to think myself as very open minded and highly encouraging of self-expression & individuality and art in all forms. However I am curious about what motives a person to get a full on face tattoo? This question also relates to a full body or body full of tattoos (but they can be covered if needed)

Does the potential for regret ( particularly when one gets much older) ever enters the thought process? Seems like a lot of popular celebrities are now going in for removal.