Lots of big topics here. If you have kids and want them to be self-sufficient, you need to teach 'em a trade that has value, value enough, that they can trade with it, and then, if that is possible, one can explore a community that desires such a tradesperson. Seem's legit to me, so does the fact that we will all die and our progeny will either live on or they will not. The big question is, will it be the smarter or dumber that carries on and or does it even matter in the long run?