It is possible to teach and accustom not only through “necessary and useful”, not only through an explanation of the expediency and necessity of this or that action, but also through positive, through “feeling”: through play, desire and interest. See →.
You need to brush your teeth so that they are healthy, porridge — to grow big and strong, wash dishes — so that there are no flies and dirt.
You can also brush your teeth to make your mouth whiter. And teeth too. Then you can even growl. And, besides, it is interesting to squeeze the paste onto the brush. I eat porridge because I want to eat it and the porridge is delicious. Wash dishes, because it is interesting and warm water flows from the tap. And it also produces foam. In general, there are enough options.
You can learn by simply doing something yourself. Be calm, the child will definitely catch up and want to try it himself. Do not discount the fact that the child copies everything. And if he copies you, then in this way, not only does he occupy himself with some business, but he can also express his positive attitude towards you. It means that he is comfortable and safe with you. And to explain the expediency of something is best after the child himself asks.
And you can go from the opposite. For example, a child will ask, “Why wash the dishes?”. And you offer him to try not to wash it. The next time you serve food, try to involve him in the process of serving food on plates. And take not washed. Believe me, nothing will happen to you or your child. And watch what he decides. Maybe he will offer to wash the dishes himself. In general, there are also a lot of options here.