2022 Is way too early, let's say about 2030, by then things will have changed a lot. People will be using it everywhere because they are going to be looking for a way to move money outside of the government radar and bitcoin will be the only gateway for freedom.
Not sure if bitcoin will remain the same by then, as you mentioned that many things would change by that time so maybe bitcoin would be legalized in most of the big countries or it may even get banned by some of them, who knows.