Since gender is socially constructed (male norms, female norms, male jobs, female jobs) the presence of trans people in society that not only understand both sets of roles but can navigate them is probably an advantage over societies where those roles are less fluid and more strict.

This might sound strange but I don't believe in an set of norms in that sense. People can do whatever the fuck they like. Male jobs are male jobs because they require more muscle, female jobs might require more emotional IQ but I don't see why you should be constrained to that

I'm a dude, I like doing laundry, and I like playing with kids, don't like cars and don't like football. Does that make me a woman?