Others seem stupid and unnecessary. But all lessons build up a lifetime resume. Growth is a process of trial and error. The great inventors made discoveries by conducting continuous experiments. Some didn't, but all experiments werecritical to the process.
Life is a continuous series of experiments.
We are the inventors. When we have learned the required lesson, only then, can we go on to the next one. To stop, stay, or retard our own growth is to die. There is no part of life without lessons. Otherwise, it would go unnoticed.