My husband was a hobbiest glider pilot, and in the habit of looking at the skies. He's also worked as a long haul trucker, and seen a lot of wierd night skies. He also pulled a Trapper, and lived in the bush in alaska, he's always been an outdoorsman. Generally people who aknowledge chemtrails as possibly real are people who have lived and worked outdoors or outside a good deal. Or a pilot, pilots are used to looking at the cloud patterns.
Generally long haul truckers, if you get them talking, have seen both chemtrials and ufos, they just generally shut up about it so people don't think they are nuts, & they can keep thier jobs.
Hubbie has thought there was something wrong with the cloud patterns since we met 8 years ago, from what he saw as a truck driver, and also as a glider pilot.
It's surprising how many people see this stuff, and just keep quiet, kind of like the story The Emperors New Clothes, isn't it?
In the course of my job, I work in a retail shop that gets tourists from all over the country and the world, it's quite surprising what you find out.