I would hate to be permanently stuck with something on my body. It's just so... permanent. Cut your hair, it grows back. Dye it, you can dye it back or to a new color. Gain weight, lose weight, pretty outfits, hipster outfits, professional outfits, etc. It's all so flexible. But not tattoos.

If there were tattoos that lasted for a few months, I'd probably experiment with some. But I feel like my tastes change waaaay too rapidly to have something so permanent done to my body. I bet that no matter what I got done and how much I liked it at the time, after a few months I would grow to loathe it.