Who is 'you' in this context?

If one parent is working, the other home with the kids, chances are that the one working can't take as much time off or has a harder time setting a healthy work-life balance (increasing your pay requires working harder).

Using myself as an example: the only reason I can pick up my kid early from the kindergarten and spend quality time with him is because I can afford to not work 9-5 every day due to my wife also working.

Not sure I’d apply your situation to every parent.