If that happens, well that's good especially nowadays that everyones facing challenges on Pandemic... every transactions should be online or electronically..however, if that well be implemented then be ready for transaction charges ans hoping they develop the turn around times or waiting time for successful transactions like in credit cards that once used it will automatically be deducted to the balance and dont have to wait a little longer.

BTCBTCYou can do it now anyway! Just go to Polispay and order their prepaid debit card and spend it to any store where POS machine is available. So you will be spending from your bitcoin in this case. I don't know what point you are trying to make while it is already very much possible! I understand you a bitcoin enthusiast but that doesn't give you the right to call fiat money useless or shit! The world economy is dependent on fiat currencies and bitcoin is just a new entrant to the world of economy, just 11 years old! Give it time and it will surely find its way into the economy for good.

But what you want now is already available! Hope this helps!

This will happen very soon because new people and business owners are now adopting cryptocurrency very faster than before. We can purchase many things on amazon, ebay, alibaba and etc by bitcoin/altcoins using third party sites like bitreffil. But I believe in the future we will pay directly without third parties.

Since money is badly needed in these days, cash is used as always even with the spreading covid virus. We will be safe if we will be considering to use digital payments and crypto currencies as well. But the thing is that we can't because the adoption of cryptos are still so low. Hope it will be considered in the future.

One can use the cashless system of the banks? It is somehow effective but it could still be good to use bitcoin as another option for means of payment. We should have a choice in doing transaction, paying bitcoin or using the cashless system of the banks is really good and for me there should be no absolutism way of doing things. A working system should be mix to have a decentralized aspect and centralized combine. If we say we will take bitcoin because decentralizationis way better and less fees but we see making bitcoin too much in volatility then maybe we will still complain about it and maybe we will then suggest to go back to basic which is getting the service of the banks. So, all will be good to have a choice and it should not be like an absolute system to prevail either centralized or decentralized system.

Amazon gift cards is a better and convenient means of payment in supermarkets for now, transaction via Bitcoin is more expensive and considering the number of confirmation before the supermarket acknowledged the receipt of the bitcoin is time consuming maybe when the Lightning Network is perfected then swift means of payment using Bitcoin might work.
Government regulations of bitcoin is another bottleneck that might hinder the acceptance of bitcoin in supermarkets, some government insisted on monitoring peer to peer transactions of businesses for taxation etc

The lightning network would be the key I think we needed to push bitcoin into payment such as this in supermarkets. Transaction time is really a pain in bitcoin it can come fast and sometimes it takes days even weeks to get confirmed. But even with the lightning network widely used I think government will still not allow that to happen not until they have control on their hands over bitcoin.

The use of bitcoin for payments in supermarkets is still at risk due to the problem of bitcoin which has high price fluctuations.
Supermarkets are large retail companies that have had to think about using the available payments. The adoption of Bitcoin is a plan that must really be considered because it will concern the profit that will be obtained.

A simple adoption that can be done is to implement Bitcoin or other cryptocurrency payments in our own stores. We can build it from scratch so that we know about the process that will occur when using a bitcoin payment.

Everything also depends on the regulations in force in the country regarding the use of bitcoin and cryptocurrency.

May be some day we will get such an opportunity, but in my opinion it will not happen very soon))) at least it will not be so mass action)) like in lots of large shops or something like that. It depends on the local owner of the business wheather he would be ready to accept such means for payments, and even nowadays there are some people who practices such variant for payments. But in order BTC would become accepted by all the business and services it would be too many nuances worked out, adopted and implemented.

I am looking forward to see that digital currencies will take fiat money's place in the future or to be a solid alternative for fiat money. I would prefer spending some Bitcoin on supermarkets etc. and also saving Bitcoin. Also, Bitcoin payment option can be found in various places now but it is not much prevalent all around the world.