I believe the thing that people would be willing to change their behaviour most for is feeling in-group. Eg, when people know that they are expected to do X, and people around them will know if they do not. But that is very hard to implement.
Agreed that it’s hard to implement: much easier to say “vegetarian food is popular at this cafe!′ than to convince people that they are expected to eat vegetarian.
I believe the thing that people would be willing to change their behaviour most for is feeling in-group. Eg, when people know that they are expected to do X, and people around them will know if they do not. But that is very hard to implement.
Agreed that it’s hard to implement: much easier to say “vegetarian food is popular at this cafe!′ than to convince people that they are expected to eat vegetarian.
See here for a review of the ‘dynamic norms’ part of this literature (studies that tell people that vegetarianism is growing in popularity over time): https://​​osf.io/​​preprints/​​psyarxiv/​​qfn6y