I would guess that the vast majority of people would prefer to see their BAT go up when they viewed ads, and down when they paid content creators, and have no more interaction than that. To the viewer, it would be monopoly money, but they'd be happy because advertisers would essentially be paying creators.

The idea that I'd have to actually put my credit card number in somewhere, and think of it as my donations, and advertisers paying me... that's a whole different mindset and has a lot more friction.