Hmm. Is that a herd of pigs I saw fly past the window? We should want change. Maybe you have in mind male / female roles just from a US perspective where, even though opportunities are supposedly equaled, powerful male vested interests still dominate (just look at the boards of the top 500 companies - how many female CEOs are there? Jeeze, how many senior board positions are held by women? Not a lot. And is there a realistic chance yet of a female US President?).
But if you're talking globally then in many countries in areas like the Middle East or Africa, women are pretty much where women in Europe were in the Middle Ages, if not much worse. So your wish for roles to be eliminated "in another few decades" seems optimistic. For that to happen in those countries is going to require some kind of "cultural revolution". Males don't give up their territory, privilege and status willingly or easily wherever they are. Maybe that's another male stereotype but a true one I think.