Since it’s still near the start of school, let’s go with another comic with that standard barefoot trope. This one is from October 5, 1948. It’s from the strip Out Our Way by J. R. Williams.
I still find it odd that growing feet are blamed on going barefoot. It’s as if they’ve never see a puppy before; at that point of adolescence, the feet grow first (and then the kid/puppy grows into them).