>>41281722
It's largely this.

But an extra layer to it is how long people are living now. Someone who lives up to their mid 80s as a woman is going to have that specific type of identity ingrained in and it;s not going to go away so fast after a couple years or a childhood as the opposite sex. They are going to lean into their very old habits formed over a longer than what used to be normal lifetime.

The other part of it is again how long people live. As in there is little to no childhood death any longer. Whereas before it was more a rare situation for a child to live past their third year throughout history. Many souls would have 4-5 different lives barely making it through young childhood before they finally made it to an adult life. For a lot of souls, half a dozen quick lives making it to a year or so before starting over again was a pretty strong palate cleanser that wiped almost all slates clean by the time they finally made it to adulthood. There were few to no past life instincts and traumas affecting them to any degree making weird kids, or people with irrational fears of accident etc.