I think survivalism is an attitude towards life in general.
Life always throws stuff at you and you dodge some or catch some depending on what you see coming.
Having the skill to do one or another is the secret to not only survival but reaching fulfillment in all aspects of life.
Health is issues are a big part of both preparing and having a good life.
Staying in shape, eating healthy, getting the doctor fix anything that can be fixed before it gets worse, having a good medical plan and so on.
Stem cells can be collected from the umbilical cord after a child is born.
Unlike using human embryos as disposable material, collecting the blood from the umbilical cord is a perfectly moral correct procedure. Keeping it at a stem cell bank assures that your child will have 100% compatibility in a marrow stem cell transplant. Its also useful in treating a number of other cancers and diseases and there’s always new stuff being researched. The brothers have like 90% compatibility as well and even the parents have good odds. Its no miracle, its just one other option, but in my opinion its well worth the paper money invested on it.
If you are planning on having more children, give it a good long look.