Should I sharpen my canine teeth?

They're not very sharp (they're kind of flat), my dentist told me she could sharpen them for free, but that I'd have to lose enamel to sharpen them. I don't want to lose enamel, but I want sharper canines because she says they're a sign of "youth." I'm only 19 and mine are flat, so I feel like I should get them done. What do you think?