I though that was pretty clear in my reply that people should not have to face unique (sex specific) barriers to enter a field i.e being able to 'freely decide'

I though that was pretty clear in my reply that people should not have to face unique (sex specific) barriers to enter a field i.e being able to 'freely decide'. What exactly are the barriers that exist for programming that were not cleared at the same time as those for math, economics, and medicine?