My wife and I just had average jobs but we bought our homes and now rent them out and with SS we are self-sufficient but we gave up a lot by being frugal in what some people call our fun days These are our fun days.
Do you grow your own corn? Raise your own chickens? Generate your own electricity? Sounds like you're relying on a financial system outside of your household to sustain yourself too, unless 'SS' is the brand of shoebox you've used to squirrel away money all these years. You are relying upon the cost efficiencies (it's called "efficiencies of scale") of people and producers outside of your own home to make your "frugal" lifestyle a possibility.
Think of the US as a household. Even a country and economy the size of ours can't be self sufficient without massive changes to our every day life. What you think is frugal, would feel like luxury compared with what life would be totally isolated from the world. It's not to say people can't live that way and be perfectly happy, most of the world lives happily off of far less than what we consider "frugal" in the United States. Pecuniary emulation has created a toxic expectation of what "needs" are vs "wants".
The reality is we are part of a globalized economy now where different parts of the world provide goods and services to other parts of the world that aren't as efficient at them (or don't have them). We haven't been a manufacturing based economy for any part of my lifetime, and I'm in my 40's. I have a hard time believing you'd get a large portion of the population to put down their cushy desk jobs to pick up a shovel and go do hard work every day so that they can go home and enjoy 10% of the luxuries and comforts they have now just so their country can be "self sufficient".
I'm glad you're now able to get out and enjoy all the things you gave up in your earlier years, and I'm also glad that sacrifice is paying off for you. But our country is no more capable of being "self sufficient" as you are, or I am, or either of us are able to be pregnant.