depends on the country. it's not a far stretch to develop an app that allows point and click sales. bitcoin can be decimalized to infinity even if the value were to go to 1 million usd. you simply have .000000001 btc to pay for said item.

bitcoin is also what the us dollar is to forex markets. it's the reserve currency. if you sell an alt coin on binance. what do they pay you in? that's right, bitcoin. 

the major western economies are in a bit of a bind right now because they have rising inflation which is forcing rates higher. if this continues growth will slow. money will leave stocks and a good deal of it will find its way to crypto

if the fed goes the other way and cuts interest rates to promote growth inflation will rise, the us dollar will weaken and bitcoin again is in the spotlight the same way it was when it was created in 2009 after that financial crisis

one us dollar today has the purchasing power of roughly 9 cents in 1950 but that trend has accelerated since 2000

poor people will get hit the worst in either of these scenarios. bitcoin becomes an obvious hedge