Hopefully it's possible for Bitcoin to become a cashless system in the future it!
I don't understand what you mean by bitcoin becoming cashless, when bitcoin is a digital currency that is controlled by many nodes in the network. It is not like fiat that is centralized and can be manipulated easily, and I don't see why you are comparing bitcoin to be cash.
I don't know the country that you are from, but many countries have started operating in a cashless system. This is why they created their own CBDC. Bitcoin was designed to use the internet. Fiat is controlled by third party.
Bitcoin will not replace fiat but they will work hand in hand, as an alternative to fiat.
Fiat and CBCD are control by the Central bank each an every country.
Fiat such as paper money or coins.Fiat money is backed by a country's government rather than by a physical commodity or financial instrument.
on the other hand CBCDs one kind of digital form of a country's fiat currency.
The Bahamas, Jamaica, and Nigeria have already launch more than 100 countries are in the exploration stage. Central bankers in Brazil, China, the euro area, India, and the United Kingdom are at the forefront.
Maximum countries alredy used ATM,debit/credit card used by fiat money. Fiat and CBCD are control by the Central bank each an every country.
If cripto currancy can use like CBCDs of any country it will help to reduce inflation and Will make a big contribution for build cashless digital society.