Well the rural area where I'm living is booming, and all the people around me have 3 and 4 young children. And surprisingly they do it on 1 income.

That sounds sustainable to me. Can't do that in the city on 1 income.

If you like the city you should stay in the city. Don't listen to me. I don't know what the future holds any more than you do.

But I'm hedging against a continuing gradual decrease in the standard of living in the US and a decline in infrastructure and general lawlessness.

That is near impossible to do in the city.

You will be eating whatever is available. You drink the water that is available. And you get to depend on entirely on law enforcement for your safety and security. And if your roof leaks you pray that you can get someone to show up.

Me personally? I'm going to ensure my own well-being, not rely entirely on corporations and government.