Because women are smarter. I notice that graph compares Computer Science ($50K-$150K/year), to Medical School ($150K--$1M), Law School ($120K--$1M), and Physical Sciences (???).
Women see the writing on the wall on High School: Med/Law School offer a clear career path to the upper middle class, while CS offers a muddy path at a middle class life.
They also see "rich" old Doctors and Lawyers. They have never seen a "rich" old programmer, because they don't exist. Programmers are washed out by 50, while Doctors are in their prime at 50.
Data: I am an 80's kid. All the smart girls knew to go to med/law school. All the nerdy guys like me wasted time learning 6502 assembly. We are all doing OK, but the women make 2 to 3 times as much as the men.
Women see the writing on the wall on High School: Med/Law School offer a clear career path to the upper middle class, while CS offers a muddy path at a middle class life.
They also see "rich" old Doctors and Lawyers. They have never seen a "rich" old programmer, because they don't exist. Programmers are washed out by 50, while Doctors are in their prime at 50.
Data: I am an 80's kid. All the smart girls knew to go to med/law school. All the nerdy guys like me wasted time learning 6502 assembly. We are all doing OK, but the women make 2 to 3 times as much as the men.