"I was just trying to make sense in my head why most of them say "from a young age I have always liked dresses and pink" "
First point - do you believe the 'from a young age' claim? It's pretty common for people to rewrite history in their head to conform with their current narrative. For example, those who want to commit adultery tell others (and themselves) that their marriage has been in trouble for a long time. This is usually the first the spouse knows of it. It's a way of giving yourself permission two behave in a certain way.
Second - dresses and pink are nothing to do with being female. They are to do with gender, and the expectations placed upon us all. Pink is a nice colour, why shouldn't boys like it? Dresses can be very comfortable, especially in hot weather, why shouldn't boys wear them?
But, if a boy wants something pink or a dress, and the adults around him are adamant that pink/dresses are only for girls and not for boys, hand on heart can you say that a child won't hear that as a Chinese Whisper as 'you want pink/dress but they're for girls so you must be a girl'?
I read somewhere recently (here or Twitter) of a young girl asking her mum if girls didn't feel the cold as much as boys. When asked why, she pointed out that girls' clothes were skimpier than boys' clothes. Bless her, she was trying to make sense of what she observed. But, not having all the information available (clothes manufacturers are sexist pigs) she drew the wrong conclusion. Liking dresses/pink could be exactly the same, reinforced over and over again by gender stereotypes.