You missed one critical bug: c) Most humans just won't "do it". As a child, student, teacher, and parent I've realized that most tasks really aren't that hard,

You missed one critical bug: c) Most humans just won't "do it". As a child, student, teacher, and parent I've realized that most tasks really aren't that hard, and by far the greatest hindrance to expedient success is an irrational unwillingness to "just do it".