I have tattoos. I think people who don't have tattoos over estimate how much thinking goes into having tattoos.
Your interests change blah blah. Yes they do. But you don't go around thinking every day about the tattoos you have. Most of the time you don't even notice they exist. It's like a cool looking mole or something. It's just there, part of your body, ignored until something makes you notice it.
Usually that something is a new person you're meeting. Now you have a cool and interesting story to tell, if you feel like. If you don't, you can just say "Eh it looks cool" and they're happy with that answer too.
I have a tattoo that looks cool. But it's also a reminder of my first ever solo trip abroad where I saved up all summer to go to London for 2 weeks at 19. That was cool. I could talk about that trip for hours.
I have a tattoo that's sentimental. A joint tattoo with my sister. I got something in her handwriting, she got something in mine. I have terrible handwriting, poor girl. But I'm pretty sure we will always stay brother & sister and the tattoos will have great sentimental value. Plus they look cool.
I have a dumb tattoo. It's on my butt. The logo of my first startup. But it's also the story of how I visited Silicon Valley for the first time ever with dreams so big.
I want more tattoos.