What's a Perfect Age to Start Modeling?

It seems as if Models are getting younger in this day and age.

The kardashian's little sister Kendall Jenner has been getting tons of slack about her age. She's 14 years of age and that's actually around the age that most models start.

I'm heavy in to fashion, run way shows and models, so it shocks me that people are surprised about the starting age of models.

However, would I want my sisters posing provocatively at such a young age?

No!

But what do you think?