We taught our children how to do dishes at the age of 5. After I would complete a meal and before I sat down to eat I would run a sink of fresh soapy water. After everyone was finished they would be responsible for the dishes they used to eat with and one dish that I dirty while cooking the meal. My husband would put all the condiments away and clean the table. I would his dishes. This way I would not be stuck cleaning up the kitchen after a meal by myself. When they come home for a meal we still go through the same routine.