Some people will argue that paid family leave can be paid for out of corporate profits or public tax funds. That hides the debate. Ultimately, we have to decide when we need to pay for things and sacrifice so that some can do what matters most for the "common good".
There's not a problem when a company decides to do this out of its own best interest. One can imagine slightly shorter standard workweeks for those with any dependents (including pregnancy). But there's a downside: that makes other employees "cheaper" and could make other employees (childless) relatively more secure during downturns.