The cool thing about car pushing is that there are
literally hundreds of yards of empty space around somewhere near you, so all you have to do is put it in neutral, drop your head down, arms straight, get low and push with all you've got for 10 - 30 seconds.
It also doesn't say squat about the
literally hundreds of other things you could worry about (like kids with allergies and asthma getting their hands on certain foods, the host taking the kids in a car without a car seat, a backyard trampoline, alcohol / drugs left around the house, playing in the front
yard abutting a very busy street, etc. etc. etc.) It's just meant to talk about your child's preparedness for being away from mom and dad.