Are the lives we live running at peak efficiency or are we struggling to keep our heads above water? Life can throw us some pretty hard balls. They may knock us down and most certainly slows us down. That's why Christians need "general adjustment to insure operation at peak efficiency".
His desire is to make us stronger so that we can face the difficulties of life. And his desire is to make us better at who we are and what we do. Those things don't only happen when things are easier; they happen when we are faced with new challenges and when it seems the circumstances are too great for any success.
Life is not like we experience in our school systems here. Life is tough and you usually have only one shot at things. So why do we give our kids false hope and not prepare them for the real world?