Here is another take on your situation, people don't know what to do, they really don't.
I was walking at a local exercise trail through the woods and ran into a frantic old man who said his buddy had a bad bike wreck, the old man said he didn't know what to do.
I sprinted down a steep hill to find the guy on his side wrapped up in a bike. He had apparently hit his front brake and went face first over the handle bars and face planted the asphalt at a pretty good rate of speed while riding down the steep hill. He was a mess, part of his nose was gone, his face looked like Mike Tyson sucker punched him a few times, lots of cuts, blood and extreme swelling. He was combative, didn't know his name or what happened so I suspected brain injury.
People had started to gather so I directed them to call 911 and told them the exact location we were at, I didn't have a phone, no one offered to help. I stabilized him, held his neck rigid, calmed him down and waited for first res-ponders, after all I had been a boy scout and had first aid merrit badge. I had also had a lot of training in the army and at my job in a power plant on handling injury cases. I knew what to do, I took charge of the situation.
The injured guy was later life flighted for a possible brain injury but I never found out his outcome or saw him or his buddy again. He wasn't wearing a bike helmet.
When the guy's old friend told me he didn't know what to do and later when the crowd gathered I realized I was the only one there that did know what to do out of the 7 or 8 people who stood by gawking.
Sleek, the military guys were probably the only ones there that knew exactly what to do and had the confidence in themselves to take action.