As to why there are not more hand prints found, I would say, how many human hand prints do you see? I can't recall ever seeing a human hand print that was not done intentionally like a kid or some such. Given that you might only find one or two definite sasquatch footprints at a location, I think that finding a handprint there would be even rarer. But, there are hand prints and hand print casts, so it is not as if they are totally unknown. Some of the hand prints found are from likely places too like a steep, muddy, river bank where the creature would naturally put his hand down for balance.