We can't predict this, but I don't think it can be used by almost everyone in that year, to be honest.
It would take many more years to be accomplished this.
I think everyone is free to make their predictions. yeah but I think it would be very difficult in 2022 bitcoin own user reaches people worldwide. even up whenever it will be difficult to everyone to use bitcoin. I think it's not about time. because it is impossible that everyone will have the bitcoin?