Decades ago, the mother stayed home and raised the children while her husband went out and earned a living. A lot has changed since then, and now many fathers defy those traditions in order to stay home and raise the children while their wives focus on their careers. In other cases, both parents share the child-rearing responsibilities as equally as they can.
Each of you may have equal rights within your home, but courts here in Pennsylvania and across the country may still struggle to keep up with the times. The good news is that more courts consider shared custody as serving the best interests of the children, but some bias toward mothers may remain.