I thing in the future most of the world will use crypto currency but when the time comes.. you can see how the evrething evolved for 20years
No, the future will be no one to use bitcoin in payment widely. After 10 years of development, I am increasingly seeing the faces of the whales. they manipulate very strongly and have made a lot of people lose money. All the news is fake and no one seems to be intending to use bitcoin as a means of payment. And even you, do you want to keep 1 coin that is likely to lose more than 50% of its value in 1 day? If you answer this question, I think you will find out the general answer for everyone.
At the moment, I really don't see bitcoin being a currency in the future too. After reading a lot about bitcoin, history and its risk. I somehow fully understand why it has a risk that makes it really hard to accept as a widely used currency. Its a lot of thinking before even trying to exchange it. Technology is rising but there are still a lot of people who can't afford to be technologically advanced. It is easy to say that internet is already everywhere but there are still a lot of place who can't even reach a wifi access or signal.
And if a country is trying to use crypto as their currency, they needed to allocate development funds for the people who has a problem in using crypto. For example, education and financial literacy, development of a place that can't reach a signal. There's still a lot here in my third world country. We have a lot of problem to solve too, we are buried with debt and I don't think moving to crypto will be their concern in a few years.