I do not really get it.
If 3 of the 4 people sorting their trash do it because of the environment, what does the other person do it for, because they like sorting the trash?
Arvīds I didn't think about that. It's a good question!
Maybe they just do because it is expected to be done, the sorting containers are provided; it was requested, ect.
Piri Maybe they just do because it is expected to be done,
That could be true, people are sheep and very often will just do what is considered normal without even thinking about why they do it.
Also maybe it is an appearance thing. People do it because they do not want to look like they do not care, even if they do not.