I do not see the problem if a parent alone can provide for the family and the other stay at home in the meantime to look after the child. But if the child goes to school and then, usually, to additional classes, then the child does not need supervision at this time and the parent can go out to work (if he / she wants of course). And if the child is too small and one person cannot pull the financing of the whole family, then in such cases nannies are hired to look after
