I think this is one of the facilities that falls into the statstical sampling basket. From my own experience, I've emt many men and women who are perfectly capable of reading maps fluently.

However, I have also noticed that the worst male is never as bad as the worst female and vice versa.

And left-handedness complicates it. Left handed women are generally slightly betterthan right handed men. Left handed men are invariably better than right handed men.

ps I am left handed and miss that knowing whenever I need to check a map.

keep to the Fen Causeway