I agree. It seems we have a built-in mechanism that helps us make decisions about people and how we supposed to respond to them. I am about the size of a 12 year old and that gets interesting responses. But I am now getting to be a older woman, so I am beginning to be put into the "little old lady" category.

I know there's even some social-psychological research about how people respond to folks with baby faces.

I try to use my higher cognitive processes after I might have a gut-response to someone. Stereotyping can certainly do us all a disservice.