I personally don't think an even split in every area is the right way to go. But the percentage of men in nursing is in the single digits - far from 'an even split'. There are concrete benefits to having more male nurses - some patients respond better to being handled by a member of a given gender. Same thing with teachers for young children, in that more male teachers means having a broader, better range of role models. 'Matching the demographic proportions' is a stupid goal, but 'well-represented' isn't.