I do have to rely on others and I am aware that those I rely on very often fail.Human knowledge is so vast that it is impossible to know everything. That makes it inevitable that you have to rely on others as source of knowledge.
It is a human trait to fail. Anywhere you go to do anything, the operation of others always slows you down. You see people everywhere displeased with the service they get.
I try to rely on other people as little as I can.