Curling your eyelashes is only a marginal improvement on a girl's entire look, no one is saying that its some big whopping change, but it does make a small positive impact. And since it only takes a few seconds, I dunno why it's such a "OMG WHY WOULD YOU DO THAT TO YOURSELF?!" thing. Shaving is a much bigger pain in the ass than the few seconds it takes to bend some hair.