Obviously it's not a great insight to realize that people often act against their own best interests in pursuit of short-term gain, on both big and small issues. People care more about the economy now than global catastrophe in the future, corporations care more about the next quarter's earning report than about the long-term survival of the company, people smoke knowing that it's going to ruin their health one way or another. Sometimes something strikes you that brings it home, though.
I briefly met a woman earlier today who appeared to be in her 40's. She's attractive, well-dressed, obviously takes care of her appearance, etc... But she had skin that was just this side of leather. She had clearly spent a lot of time sunbathing or sitting under a tanning light. It amazes me, that with all the evidence walking around among us attesting to the damage that sun does to your skin (to say nothing of cancer), people will still sacrifice the health and appearance of their skin for a few years of bronzy glory. I for one don't see why people like the bronze look so much anyway. In any case, this woman would have looked noticeably more attractive with smooth, unwrinkled skin. And hey, it's her body, but since she clearly takes pride in her appearance, it seems out of place.