Like they say "old habit is hard to die", So it's hardly likely for paper money to be replaced by any digital currency anytime soon, specially to those countries who place a great importance on their tradition.

But for me, I like the idea of cashless society coz it's hassle-free.

And Bitcoin cannot be counterfeited unlike the paper money that is easily to counterfeit and this fake moneys are widely spread in the world and it is hard to recognize if the money that you are holding is fake or not. This is one of the biggest advantage of Bitcoin "Non-counterfeitable"  


I'll be adding that Bitcoin and other forms of crypto currencies give us freedom to choose on what currency we want to use and what we want to do on our assets, unlike the paper money that is centralized and controlled by the government and mostly corrupt government, they can easily steal money from the people's taxes that they can not do with the digital currency. You're correct that cashless society will never happen on some parts of the world but on rich countries such as Dubai it is not impossible that they'll have a cashless society in the near future.

Alibaba has racked up $25,300,000,000 billion in sales on Singles Day, China’s biggest online shopping day, so far, with close to $7 billion in sales made in the first 30 minutes. This was 29 percent higher than 2016, when the online shopping company made $17.8 billion. This year it made $18 billion in sales before 12pm, making $1 billion in the first two minutes.

https://www.rt.com/business

Well, this has been predicted even before. This could ve our future, where we don't need to have fiat money as we have roght now now but have a uniform or global curremcy but we cannot say how long we will wait for this.

ATM in a bank system is also made possible by fiat because it is commonly a transaction with the power of fiat within a transaction which is transferable through online basis. But the point is bank system is always passive in accepting the development or changes in the world of transactions and currency and it is a sure thing that bitcoin and cryptocurrency will be accepted by our society.

people in my country are very difficult to use cash because the government strongly reject BTC so most likely my country will still use currency.
 

Yes, our future world will be the cashless society because of I am from India, the India government as planning to do cashless society and other countries also going to accept digital money as a cash.

Yes, debit and credit card payments at shops/stores and POS machines has gone up in India to great extent. India is heading towards a cashless society

China is one of the very best country or much advance technology country. Most of the people in china are very hard working and they are very business minded people. Digital money is normal in every country, but in China, it is very popular. Cashless society is starting, let's hope it will continue.