The employer can be somewhat flexible, but it is not for all employee's and
Job Satisfaction Level
I had a preemie at 31 weeks and went back to work the week after my baby was born with the hope of being able to take time off when he came home from the NICU. I requested 3 weeks off and it was denied, because my "role was too important". I could not take the CA disability leave because my baby was in the NICU for approx 9 weeks and had I taken it would have had to be back to work before he came home.
Not for Pay, Promotion
Improve work-life balance and policies (e.g. flex-time, limit facetime)