Why do we listen to 'they'?!?

What do 'they' know?
Who decided 'they' are right?
Certainly not me!
Why?
Because the Madame Bakery Lady would not ask me how I am and how others (who are not with me) are doing...
Because the Butcher, whom I pass on the sidewalk 7 blocks away from the Boucherie would not stop to say hello...
Because a stranger would not smile at me as we cross paths near the metro...
And because a somewhat homeless looking man would not politely offer me his newspaper when I come to sit in a public square and insist because he was done reading it and was on his way somewhere else.