It may yet be a possibility far in the future, but it doesn’t seem like anything that can even be considered here any time soon. As simple as it may sound to you, there’s a lot of things “behind the scenes” that would have to occur. For example Brave would need to get special licenses, they’d need to collect all of our personal information, they’d have to report all of our information to governments, and so much more. The amount of work that would be required to handle it all is too much. Not to mention it would be too much information in one place.