More from the same article:
One of the group’s teachers, Izabell Sandberg, 26, noticed a shift in a 2-year-old girl whose parents dropped her off wearing tights and pale-pink dresses. The girl focused intently on staying clean. If another child took her toys, she would whimper.
I was this quiet, mousy girl who loved pale-pink frills and tights. And I was always bugged and criticized by teachers for being that way. That didn’t make me any happier. All I wanted was to be left in peace but, gosh, the efforts they made to “improve” me. It still bothers me even to think about it. The message a child gets is “something is wrong with you. You fail to satisfy expectations.” I believe that is a lot more harmful than any pair of tights.