A failure of imagination on my part. Not bucking in your kids?
I won’t even back my car out of the garage and onto the driveway without bucking up!
We don’t know if it’s a factor in this incident, but a lot of children, even very young ones, are loose in the car.
I don’t leave the driveway (the van is too big for the garage) without a seatbelt, either, and all passengers are wearing them and sitting up straight.