Fewer women than men have careers in Science, Technology, Engineering, and Math (STEM) fields. In this day and age, it still shocks me, though the cause and effect are clear.
Historically girls from a young age have been less encouraged in and exposed to STEM opportunities. It sounds outrageous, but it’s not. In the US, studies show that preschool girls are pushed toward dolls and cooking toys while the same age boys are given building toys and science kits. So, the net result is fewer girls and women interested in STEM in later years.