My 11 year old son fell while playing on a playground today, and hit his head on a metal bar on the way down, giving him a pretty solid concussion. He's getting plenty of rest and fluids, and will be taking it easy for the next few days to a week or so, but if we took him to a doctor, they would tell us everything we already know, and to do everything we're already doing, and then charge us a bitcoin or 2 for their "services". No, thank you!