Young women in three door hatches are just as bad as young men.
Frequently they are worse!
Hormones ?????!
I think you'll find that testosterone is still the most dangerous hormone when it comes to driving behaviours.
However, I'd still rather deal with an aggressive driver than an indecisive one. The first is predictable and you can keep/get out their way. The second one gives you no clue what random stupidity they are about to perform.