Your reflections in this post are superb and profoundly accurate. We all reach an age where many things that we used to think otherwise are no longer funny to us. I personally believe that after a certain age we become jaded in the face of life's problems.
Changing such an attitude requires meditation, prayer, reflection and focus, or simply requires that we find an activity that allows us to drain our personal existential frustration. But not all of us have the capacity to accomplish these things. I particularly feel jaded about so many things in life, but I drain it through poetry.
It was very enlightening to read your content. Good job my friend.