Spatial intelligence in children: Why training matters
And basically if you intentionally teach those skills, the gap between men and women closes right up. We think of spatial reasoning as an innate talent, but it can be taught/improved with practice. So play first-person-shooters with your daughters, it's good for them.
1995? Giant Iguana
My older daughter insisted on pink, purple and princesses long before she had any outside pressure to do so. While my wife and I were actively trying to avoid emphasizing such things. She also enjoys getting dirty, temporary tattoos, rafting, rock climbing etc. Some nature, some nurture. It is, what it is.
Here in Singapore, it's 50/50 as far as I'm concerned. I've noticed absolutely ZERO form of 'gender bias'.
I would comfortably bet a hundred bucks on a woman being the next cyclist around a random bend, though the biasness would likely fall on the men's side. There are a not-insignificant number of foreign male workers (Indian, Bangladeshi, etc) who cycle.
I live very near to ECP - a coastal area and arguably the most popular leisure cycling spot in Singapore - as well as cycled all over the island, but I've never gotten even an inkling that there are notably less female cyclists than men.