Rest rooms size - do architects know their job ?

there is something I have noticed for years in almost all buildings I have visited... restrooms are the same size for men and women, resulting in HUGE lines of women waiting. This is absolutely normal since they need more space and take more time than men, This is a universal fact negated by all architects in the world. The surface dedicated to women restrooms should be almost twice the surface for men... it seems that no architect in the world knows this and has been capable of doing his/her job properly for the last 30 years.