You describe good situations and solutions in each problem you describe. Living in a small family, the main thing that married couples should prepare for is their mentality of what kind of parents they will be, so that when they have children they should be able to divide their time well between being a father, mother, for themselves and for their children. This is something that must be communicated in advance. I totally agree with your argument that educating children is not one person's job but the presence of both parents is very supportive of a child's development. Good luck to you my friend