Children need a stable living arrangement if they are going to learn how to contribute to society. Whether that be through public or private means, an education is essential. Religious beliefs must be taught in the home. Some member of the family needs to be gainfully employed. Mother or father it does not really matter.
Parents are responsible for the social upbringing of a child.
They must be taught how to get along in the world around them. They must be out and about and not kept in isolation. It is vital to teach our children how to love. With out this, they will be lost. Early childhood experiences are so important.