Well, maybe we shouldn't bother.
Buying pints isn't really gonna work with bitcoin... at the moment.
A fiver is easier than paying with a €50 and waiting for the change.
Does that make €50 notes useless? Why bother with €50? Well, a €50 note can serve more purposes.
Same with a credit card, right? A fiver beats a credit card for paying for a pint!
At least until the banks innovated and made contactless payments.
Now, after some setup from the merchant and the customer, a contactless card is even easier than a fiver.
It required a lot of work from the banks and we had fivers already, why did the banks bother?
Because the initial work put into it doesn't matter to us using it, banks enjoy the increased volumes and we just enjoy the end product. (by the way I don't even use contactless, but it sounds like the fastest easiest way to pay exactly for a pint).
Now, we had to wait for the banks to innovate and improve credit cards.
With bitcoin we don't have to wait for anyone. Anyone can start creating an app that makes paying for pints easier.
And you can even use hardware technology that's already in place, like the current smartphones that are circulating. There might be no need to buy a new POS or order plastic cards.
Overly simple example.
Although the current high network fees make it all useless, lets assume network fees are like €0.05. The merchant will be happier to pay that 1% than the banking fees.
It is possible to make an app that does the following:
Merchant app
- Tie the price to the unit of account of your choice, be it € or oz of gold or whatever
- Real time convert the equivalent in bitcoin ( or other cryptocurrency)
- Broadcast a payment request
Customer app
- Store money, arguably not very securely but your cash in your pocket isnt really secure either
- Display in your choice of unit of account (maybe I believe in 'North Korean won' and account my net worth there
)
- Read a payment request, maybe convert it on display in your choice of currency, using live markets data.
- Pay it, or not.
Of course you need to add more functions, details, add limits, require prompts, different broadcast methods, like displaying QR code, or simply tapping a phone to one another (NFC?)
Point is it will happen, because bitcoin is programmable money and people will be building apps for it non stop. Its all open source, people will build and others will build on top and improve.
And once someone makes it good enough, if its easier then the fiver or the contactless card, we can simply start using it.
Or not.
Bitcoin is voluntary, noone is forced to use it.