"...people and communities learn and adopt different social standards." No kidding. To give you an idea of just how wide ranging the standards can be, consider

"...people and communities learn and adopt different social standards." No kidding. To give you an idea of just how wide ranging the standards can be, consider this passage from Gandhi's autobiography. "...there was an unwritten law among the Porbandar Memans living in South Africa that death should be preferred to bankruptcy."