Having children isn't easy. Having children near peak fertility is relatively easier than later. If a woman has the foresight to know that she would like to have a family first, and then work on her career, she could focus on finding a husband who can provide the resources necessary to both have children between 18-25, and support starting a business later.

This used to be common knowledge, and it was so for a reason. If someone doesn't want to go this route, they obviously have every right not to.. but they should understand the tradeoff.