What small business owner in their right mind is going to hire a woman between the ages of 20 and 40, with the possibility of having to guarantee their job back in 18 months?  What person is going to take that "risk"?  Training a person to then only have them leave for 18 months, train a substitute, and then oh, right you're back here's your job back, oh and by the way; we have to train you again.  But hey, all in the name of supporting woman in the job market....LOL