I see it is nearly impossible to happen except if bitcoin become one of the main used currencies in the world and I do not think bitcoin can handle that huge number of txs now.
It is quite possible to happen. The bitcoin is getting popular year after year. More people are using the bitcoin now.
Yes its true many people are now aware of digital currencies and pretty much with bitcoins. They see the convenience of using it as an alternative to fiat currency. Same benefits with it but with low fees or sometimes no fee at all with every transactions online. Plus there are many online stores that accepts btc as their payment.