still 2022 has got 5 years left but i dont think you will get not more then 50% of the users of world population. Ya if their is any legal move of making bitcoin legalize in almost top country then we can see the sudden raise of users of bitcoin. Till then dont expect before 2030
At present very few were aware of bitcoin and other digital currency. In term of count almost 25% of the entire locality starts using bitcoin. Government have got regulations which is not 100% effective.
I wonder where you get your data, I'm kinda confused if it is present or in 2022. If that line is for the present statistics, that is somehow very big percentage. I can set an example to my locality, with more than 10,000 population there is less than 1% known bitcoin and far less than that is using bitcoin. But I know in 2022, the number of people will increase exponentially because of ads and adoption.
The user base of bitoins will surely go higher in next 6 years but I don't think that it will be used by everyone especially the older generation will never take a risky of investing their money into it and will prefer to use only paper money as they find it easy and convenient to use and bitcoin can make things complicated for them.