As it seems quite rare with the kids near us.
Last summer a girl on our street fell off her bike and they thought she had fractured her jaw, she had concussion and wasn't wearing one.
A friends little boy just came off his bike and has a massive egg on his head.
I'm not perfect and I know they can still hurt themselves even with a helmet.
But am I unreasonable to make them wear a helmet or overprotective because that's how I'm made to feel.