Uhhh...say what? I don't follow that at all. I have 2 sisters, so that would qualify as your definition of a "small and medium sized" family. Both of my siblings were appreciated by our late parents, but neither was seen as a "princess"--except for once when the middle child squatted bare-bottomed in a patch of stinging nettles when riding in the mountains and was laughed at as "Princess Nettles" for a few years.
My father's family included 8 children, 5 of them them girls--and the same view of respect and appreciation applied to them as to my own sibs.
So...your question makes no sense to me.