White weddingdress

A son asked his mother the following question: 'Mom, why are wedding dresses white?' The mother looked at her son and replied: 'Son, this shows friends, relatives and others that the bride is pure.' The son nodded his head, thanked his mother and went off to double-check this with his father. 'Dad, why are wedding dresses white?' the boy asked. The father pursed his lips, rubbed his chin and thoughtfully looked at his son, then said: 'Son, all household appliances originally came in white.'