There are plenty of inquisitive and curious women, today and in the past. There is a certain kind of cultural and social pressure to not be this way for some women, which may affect how many women you know who are vocal or outwardly open about this attitude and personality.
Notice I didn't say there aren't any inquisitive women. Simply that I don't see them in the quantities that I see curiosity and inquisitiveness in men.
I'm not blaming women for this. I'm just asking why this seems so commonplace in regular observances?