As background to my question, I was having a conversation with two female friends recently, and they both suddenly chanced upon the fact that my eyelashes are long, bushy and curl upwards naturally. They both instantly asked me if I used mascara, and if so what brand. I don't. So my basic question is what is it about eyelashes, why is it desirable to have them long and curly? I honestly had never paid attention to eyelashes before. What's the appeal?