Can you say more about the household rotating dictator?
My partner's household regularly has a bunch of easygoing/indecisive people trying to make dinner plans, choose a movie to watch, etc. When there are strong opinions and/or clear reasons to choose one thing over another, those prevail (it's rarely the case that there are conflicting strong opinions). But to deal with the vast majority of cases where everyone says, "I'm fine with whatever," there is a rotating dictator.
The dictator changes every week and is listed on the shared household calendar. The dictator has the job of making the decision whenever decision-making stalls. Because the household is so easygoing, the dictator is more of a dreaded position than a desired one. But someone has to have the responsibility for making things actually happen, and that's a fair way to distribute the burden. XD
As a result of this, in other indecisive groups, I will sometimes say, "I'm willing to be dictator if nobody has a strong opinion." (I get weird looks sometimes, so if I don't have time to explain about the rotating dictators system, I will just say, "I'm willing to make an arbitrary decision" instead.) I almost never have a strong opinion, but worst case I can always flip a coin -- and if anyone DOES have a preference, that often surfaces it.