Would you consider putting a helmet on a toddler learning to walk to protect his head?
I would not. I was just curious about the opinions of the people here.
it isn't much of a stretch from some of the other concerns and interventions I've heard.
Unless he has some very unique health issues -- no.
Nature thoughtfully made toddlers short, so when they fall while learning to walk they don't fall very far. At any rate, he won't fall on his head; he'll fall on his butt.