Or a weapon with the dual-wielding trait.Two-Weapon Fighting allowing you to make a second attack with the bonus action when you have the extra attack feature! (pg. 446)
Gender plays an incredibly large role in society, both real and imagined. I don't think we should interpret this as anything else than the sheet's designer simply saving space, just like many sheets skip a space for eye color or length.Two smaller changes off the top of my head are that if you know a language, you also know how to sign it, and that gender has no place on the character sheet.