I disagree with the helmet thing... riding a bike without a helmet is a good way to quickly change a scraped knee and a bump on the head into a seriously debilitating brain injury. I would say you should talk to my cousin about it, but he's not a very good listener anymore... He crashed his bike without a helmet when he was 11 and is now 34 years old and can't even eat or shower without assistance. He will probably never have a mentality any higher than a 6 year old. My kids will definitely wear helmets while riding a bike.
For most other issues though, if it isn't bleeding profusely and there aren't any bones sticking out, they should walk it off.![]()