I never know that for sure, but it's a safe guess. It's become a bit of a hilarious trope here in Portland. The people who are always complaining about the rest of society's wanton disregard for the environment are the ones who aren't riding the bus. Their kids are the reason they're so worried about climate change, which is caused by overpopulation, you see. Nothing racist or Malthusian. They're shuttling their kids to soccer practice in a Subaru, how much more eco-conscious could they get? And when dad puts the kids down, he gets online and complains about how everyone else's consumption is ruining the world.

When you talk to other people who don't have kids, they always make sure to let you know they don't.