Belaying is one of our "can't fail" skills. Its also proof that just because something is "simple" its not necessarily "easy". Just take a walk on a busy evening in your climbing gym or a day at the crag, and watch climbers performing this basic technique. How many would you trust to catch your fall, or lower you down?
My only criticism in this video is that the "Question and Answer" system of belay commands might work in a gym or top-rope scene, but can quickly become a communication "cluster-f" on multi-pitch and alpine routes. I may write more on that later.
But props to the American Alpine Club for stepping back up to its roots as a climbing organization, taking a stance, and providing a bit of leadership for its membership and the public. The AAC has being doing more and more of that lately - I'd like to see it take a more active roll supporting the Access Fund too, but that's another issue for another day. Possibly most famous for their rescue insurance, they also award thousands in climbing grants and host hundreds of events across the country that strengthen our community and make politicians and land managers take notice. They deserve your membership - I joined back in 2001. Check them out here: LINK.