Why are there so few female scholars?

I've been seeing a lot of posts in here, particularly from fellow women, about how Islam has some sort of bias against us (and I've been guilty of feeling this way too), but it had me thinking. Maybe some of these biases would not exist if more women played an active role in interpreting Islamic texts.

It's an unfortunate reality that when interpreting anything within academia or religious scholarship a person's own biases will be reflected in how they interpret what they're reading (an example to use here is how Wahhabis will read their own ideology into the Quran). Obviously a man will favour interpretations of Islamic fiqh that favours them and nearly all scholars are male, thus leaving this massive trail of cultural male bias.

This of course comes back to my original question. Why are there so few female scholars? As far as I'm aware the only actual prohibition on women in this area is being a marja, yet I can count on one hand the number of reputable female Shia scholars out there. So why are there so few? I really believe that having more women could lead to proper interpretations of Islamic texts that result in balance for both men and women as both male and female biases could be properly addressed in the readings.