now there are some countries that began to issue a ban on the use of bitcoin, is there any influence on the country and of course its users in economic value?

I'm just reading an article in the newspaper. Klaus W. Wellershoff (a last chief in UBS Bank) says that's impossible to use a currency with volatility as money. If the value of the money decrease, that means the value of the merchandise decrease. For example : if you buy a flat with bitcoin and few years later the bitcoin value decrease... Your flat lose his value as well.

What do you think about this argument?

I think majority of people here are very selfish ,. Believe it or not. They are hiding and choose not to tell to the other person especially to their neighbors what is cryptocurrency all about.
They don't want to spread the mechanism of it. And that is very wrong for me.
We must encourage people who have no idea to the cryptos. Teach them how to use and explain what is the benefits of it.
This is also for the good of our industry .
Remember the status of cryptocurrencies as of now is endangered and the value of bitcoins is gradually dropping .
So, the good thing to do is to spread out the operation of Blockchain technology.