But a boy who likes dolls and kitchen equipment is still a boy, and a girl who likes trucks, blocks and toy soldiers is still a girl.
No one is suggesting sex changes because of an association to average gendered behaviours only gender if an individual identifies with the average opposite sexed behaviours.
One of us has missed the point of the first response. I thought the point being made was a boy who likes dolls etc is still a boy, he doesn't have to change his 'gender' because it's perfectly normal for a boy to like dolls etc.
It may not be typical of boys, but it is still quite normal, it doesn't mean he's a girl, no gender reassignment needed, just acceptance that he's a boy who likes to play with dolls. Gender Critical 101.