Come on poop, that's bad analysis you linked. I'm not denying some kids live in hardship, but this is akin to the union rep I heard being angry about half the staff in the organisation earning less than the median. Obviously 30% ish earn less than 60% of the median. That's before we get into measurement technique, regional differences, etc.
Do we also need to talk about whether it's responsible to have 2+ kids when you don't earn a lot?