In the US there are separate buttons to select the grade of gasoline (I always push them to see if I can just bypass all the nonsense, but alas it doesn't work that way). The screens are an add-on gatekeeper that disables the grade selection until all its questions have been answered (NO, NO, NO, NO).
My process has been pick up the handle, hit the grade button, attempt to start pumping since the pay at the pump machines started to roll out a couple decades ago.
This used to work for probably better than half of them due to the fact that they had pay after pumping policies for the cash customers. Hardly ever works anymore, but I keep doing it and sometimes am surprised, while on a road-trip out in the country, when it works. OTOH, I also tend to stop at old crotchety gas stations on principal and have been known to make a U turn if a station has pumps that look like they are older than a couple decades. A few years ago, I stopped at one where there was a $3 taped over one of the digits. I asked the owner about it, apparently his pumps could only charge .01-$1.50 (or some range like that) so every-time gas prices went over or under some threshold he had to physically flip some mechanical gear in the pump and get the state to come back out and recertify the pump. This of course apparently cost more than the poor guy was making in gas, so he was saying that likely the next time it happened he would simply shutdown.
