I think they're fine. But too many people don't think though what they're getting.
Though, on a personal level, i don't like them on women. Its too masculine, even if you get a flower, butterfly, or any other stereotypical female tat. Doesn't matter if you get it on your ankle, your inner wrist, around your belly button, on your cleavage or a tramp stamp. But if i woman wants one, her choice.