It doesn't have to start early in the pipeline. https://educationdata.org/number-of-college-graduates https://educationdata.org/number-of-college-graduates It'

It doesn't have to start early in the pipeline. https://educationdata.org/number-of-college-graduates https://educationdata.org/number-of-college-graduates It's only relatively recently that female graduates even reached parity with (and now outnumber) male graduates. It will take even longer for the male:female divide to be closed in STEM.