Ethics on dance; Images of Dancer, expectation of being a dancer

I wonder what kind of answers I get, if I ask people for an images of a perfect dancer?
Pretty? Skinny? Beautiful? Light?

I would like to investigate what dancers do to keep this expectation from people and from dance companies.
I would like to look in to how these images effect on dancers mind and body, and to work out the consequence of it.

Also, are we supposed be a role models for young dancers?
Are we sending a right message to them for being skinny and pretty?