Curvy, stick . . .am I a road?

I wore a dress a few weeks ago. Yes, it was indeed a miracle of all miracles that I wore a dress but well, I got to shake things up every so often and not let people start thinking I'm all predictable.  Besides, it was my daughter's preschool graduation and my husband's birthday soon. Anyway, I was actually happy with my appearance. It was a nice color, covered everything while still showing that I am indeed a female. I even posted the pic on FB, sort of a proof that I can be a girly-girl just once every couple of years or so. I got a few compliments but honestly, I was posting more for the shock value. One of the comments was something along the lines of: "You go, girl and show off those curves!" I know she meant it as a compliment of being proud of my body but the statement made me really think about such things as body image and all that.

First off, to set the record clear, I'm fairly neutral about my self-image. I don't believe myself to be beautiful but I don't believe myself to be ugly either, but nor do I believe myself to be plain. I'm me and that's easy and more than enough for me.  There is no one else like me, looks or personality-wise and honestly, I take comfort in that. Anyway, the point is that I'm not fat but I'm no way near skinny. Weight-wise, I'm average with being able to wear Medium sizes for the most part. I used to have less weight on my frame but I had a kid and I would rather focus my time and energy on other things than worry about being a smaller size. What I'm saying is that I wouldn't say no to losing weight but it's just not a priority. 

The point of what I'm trying to say is that why is an average sized woman considered to have curves? Shouldn't an average sized woman be considered just simply looking good? When did being stick thin start being called not curvy? Why is being considered above average sized as curvy or big boned? They're overweight. The human body has a limit to what is considered healthy. I just find it completing that body image has no bearing on healthy. Perhaps I'm missing something on this topic?