I apologise for bringing this somewhat distasteful subject up again.
I am really disturbed by some of the sexualised speculation relating to a baby as I've ranted on about already. (Sorry everyone, got really p****d about it).
I found this article which hopefully can put this matter to bed, somewhat. It is also rather revealing about some of the cultural developments relating to gender in the US.
QuoteNo. For most of U.S. history, nearly all infants, regardless of gender, wore dresses. Only in the 20th century did sex-specific clothing come into fashion: Boys started wearing pants, while girls continued to wear dresses.
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Boys made the switch to pants younger and younger until the early 20th century, when they stopped wearing dresses altogether. G. Stanley Hall, one of the fathers of American psychology, published a series of articles around that time arguing that gender distinctions were a hallmark of modern Western society. In his view, parents had an obligation to teach their children gender roles. (Prior to Hall, gender-appropriate behavior was assumed to come naturally.)
http://www.slate.com/id/2260366/