I really stopped giving a fuck about what 'society' will do. That way of thinking only lead me to disappointments. I have BTC and I will continue to use BTC as an immutable, uncensorable store of value. BTC is my savings, and my pension.
Once we get a proper circular economy going, I will be more than glad to spend my LN bitcoin. I doubt the real producers of the economy (butchers, farmers, etc.) will be willing to take toilet paper money once it becomes glaringly obvious how worthless it is. As a doctor, I would love to open a nutritional consulting clinic and take btc as payment even today.
How a true hyperbitcoinized economy will work I don't know, but it will probably look similar to the era of the gold standard, i.e. it will be an era of unimaginable wealth and production boom. Who knows, people in the future might even be able to afford housing and have families again if BTC manages to take away the monetary premium from housing as the better store of value.