(1) Ads on busses
This is the obvious spin, that anyone trying to undermine such ideas would do. So I just checked the yearly (pre-pandemic) financial report for our bus service - the buses are COVERED in adverts. From what I can tell, those ads bring in less than 2% of all income.
The ads on bus stop were given in exchange for running the bike rental service, but that service isn't free to use, so the income can't be that great.
(2) Ignoring ads
I have a feeling that "I can just ignore it" is the critical fallacy that will undermine ideas such as mine.
To know just how much they are affecting you, you have to go to a place with no ads.
Honestly, if you're using ad blocking on your computer - turn it off completely. The difference in physical ads is not as big (since action blocking popups are not a thing), but even discounting those, just the saturation of "things going on" is tiring. Ignoring things is an active action that requires energy and focus... why you are giving that away freely to someone trying to manipulate you ... I do not understand.
The fact that you use "waiting to click a skip button" as a comparison shows how normalized ads have become.
The alternative to "fewer ads" isn't "ads being forced down your throat" but "no ads, at all".