Amen
All my tattoos I got were for me.
The OP is going to get a tattoo, whether now or when they turn 18.
Plus 50 isn't exactly ancient. I hope I still have all the zest for life that I have now in my 20's. If anyone asks about my tattoos when I'm in my 70's, I'll have to remind them that I'm cooler than they are
ITA!