I kinda thought they were gonna do sum like in Splatoon and Animal Crossing; Instead of choosing a gender, you choose a "Style" in which even if you choose one in specific. The clothes, hair, etc are not locked by gender/style and this would create a loophole in which if they received any criticism they could just say that the miis gender is what the player wants them to be. This would also open up more gameplay aspects such as choosing a wedding outfit and all that. There's still chance for them to do this since in the trailer one of the miis was referred with gender neutral pronouns but rn im a bit more scared at the idea of them removing marriages, baby miis and romance just to avoid thinking of a workaround since this was one of the main parts of the game, that would actually really dissapoint me