Sort of reminds me of the color swap of Pink and Blue for Men and Women.

You're the victim of misinformation.

In the past there were no hard associations between sexes and gender and it was possible to find boys wearing some pink clothing, but it was never the case that people associated pink with boys and blue with girls.

There are some limited examples that contribute to the misunderstanding. For example blue is often associated with the Virgin Mary and red (not pink) was considered a manly color often worn by warriors (e.g. the British, the Romans, etc).

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This is essentially the way reporting works. If you write an article showing that in the past it wouldn't have been bizarre for boys to wear pink you don't get much traction. But if you write how pink was actually worn by boys and it was considered shocking for girls to wear it, then people find that very surprising and you get a lot of views (truth be damned).