A hike through the Himalayas might be physically taxing but it's just that, a hike. Not an attempt to climb an 8000m+ mountain. Mandating guides for hikers doesn't make Everest any safer but it might keep hikers from getting robbed or murdered. Now, the rules seem like they should also apply to the solo climbers on Everest, in which case it would probably help corral crazies like that turk with the bicycle, but as far as I can tell most of the fools unfit to climb Everest are doing so in groups which already had to hire local guides. The only way to keep those fools from dying is to actually mandate climbing experience in order to secure climbing permits.