Supporting the idea that "collective action is a social norm and this is what it feels like" is part of the process of getting citizens to realize and employ their agency.
It is a low-stakes chance for people to decide for themselves whether they are willing to be mildly inconvenienced in solidarity with others. That is the point. It's Day 1 of a Couch to 5k. You're accountable to yourself.
Supporting the idea that "collective action is a social norm and this is what it feels like" is part of the process of getting citizens to realize and employ their agency.