men still outnumber women by a lot in the military

And, more significantly I think, name me one female State Alchemist...

Women having their own businesses and careers would affect the way that property and inheritance laws are tangled in with marriage laws, I'd expect. I wonder if they have legal divorce, and what the social attitudes about it would be?

I have this theory that Pinako, the Leopard of Rizenbul, never married. Because she was free-spirited and wasn't getting tied to some man and was perfectly capable of running her own business and working her craft. (And because Grandpa Rockbell gets no mention at all.)

Which is not directly related, but... yeah. Hmm.