I am sure that the cryptocurrency will very soon enter the life of every inhabitant of the earth and will remain for a long time. Cryptocurrency does not stand still, it is constantly evolving.
You need to quantify.
When you say that
"cryptocurrency will very soon enter the life", you need to specify what do you mean by
very soon. Is it 6 months? 1 year? 2 years? or even 5 years? Bitcoin has been in existence for more than 10 years, and as of now it is being used by less than 2% of the world population.
Similarly, when you say that "
it will enter the life of every inhabitant of the earth", you need to specify what do you mean by "every inhabitant". Do you mean 100% of all the humans? Or a bit less at 90%? Or even lower? Also, you need to remember that even digital form of fiat currency (such as CCs and Paypal) are being used by less than half of all the inhabitants.
And now the last thing... when you say that
"it will remain for a long time".... How long? 10 years? 100 years? Or 1000 years? Normally technological innovations have a short lifespan... Anyone using floppy discs in your vicinity?