When btc will be replacing money in terms of salary anyone who will one 1 BTC only will benefit a lot as with price increasing people will get salary of cca. 2000 sats and 1 l of milk will cost 1 sat in the store.
Bitcoin is already being used as both a store of value and speculative investment. Soon, it may become a viable means of payment. New payment systems or asset classes do not emerge overnight but it is worth noting that the concept of money has evolved, even in our lifetime, from cash to digital or contactless payments.
Yup indeed, now we are running in the development of currencies where physical money will begin to be replaced with digital money, of course bitcoin in the future will compete with this digital money.
It is clear that the state created digital currencies including my country, even though it is still controlled by the government but this is the first step in the development of currencies towards digital currencies.
I am sure that in the future bitcoin will become a recognized digital currency used by various people, and used as an investment.