SplatController
I get my ALWAYS from the published data. In the days of the 11+ being national girls had to get a higher mark to get to grammer school. When women were first admitted to Oxford (they were allowed to attend lectures and take exams but not obtain a degree they scored the highest marks )
In the days of O Levels girls passed with higher grades than boys, in many cases the subjects they took were limited by the school so girls tended to pass French and Art rather than Physics and electronics but once the national curriculum came in that discrepancy disappeared.
As for being paid less for having a baby - check the BBC pay scales, google 'average pay'.
Work that is traditionally seen as female is paid less the traditional 'men's work eg cleaning vs plumbing.
As for pay dropping when a woman has a child, why doesn't it drop for men? Why do women who do not have children not earn as much as men?
Then there is violence against women and girls, rape culture, honour killings, schools that teach girls they are inferior or have a set role in life.
No access to abortion in some places.
That's just in the UK.