You can ask any parent in the history of the world - having a child changes you. There are the obvious ways it changes you - less sleep, more responsibility, more stress, more love, etc. But, having a child also changes you in a lot of non-obvious ways, namely, the way you think about your career.

We need moms in the workforce in order to create the products and businesses moms need. A product or service is created in order to fill a need - no one sees the needs and wants of a mom like another mom.