As for girls,i think their mentality allows them to respond to softer punishments, I remember one of my sisters was rude and talked back to Mom, and my mother just banned her from her daily allowance for 2 days and on the third day my sister apologized and never got rude or talked back after that. Just laughing, imagine it was me who got such a punishment(though am sure i’ll get harsher physical discipline), I’ll never mind it or fear it.
But also we can’t generalize, some boys are responding, but to my belief most of boys need to be dealt with by more harsh methods of discipline to get them on the right track.