One of the best things you can do for your children is to teach them to behave in such a way that you will like them. Because if you will like them other adult

One of the best things you can do for your children is to teach them to behave in such a way that you will like them. Because if you will like them other adults are also likely to like them. When you and other adults like your children it opens up huge opportunities for growth and positive experience both inside the family and out. I don't know exactly how that fits within the definition of being their "friend" exactly. It sounds a little adjacent to friendship to me.