As a former teacher, I must say that it doesn't require 12 hr days. If she were an associate in a law firm, yeah. But teacher? No.
Ok, secondary school math, with over 100 students, some extremely bright and pre-calc, some needing a lot of remedial help... this for 8 years, grading papers at night, preparing lesson plans....
Now, she is chairman of math education for an urban school system, responsible for all math programming grades 1-12, with many different schools to supervise... and she still teaches 3 classes.
Now maybe you understand that 12 hours is a good day... she works weekends and summers too.
Depends on the teacher Robby. I regularly put in 15 or 16 hours a day (several hours on the weekend too) on teaching stuff. BUT I don't respect the woman for saying she doesn't want children. I've seen plenty of teachers become good mothers. I've also seen many who have stayed home with their children and then come back to teaching and many that quit to raise their child at home.
As a teacher who HAS wanted children for years, but hasn't had the privilege of doing so, I do find that a little hard to take. But my job is in helping to hopefully touch lives and serve others' children for now.