

It was like this in the Bay Area when I lived there, like in Alameda county at least. People exited at the rear doors and gave a thank you to the driver. Became a habit for me. I moved to Norway a few years ago and absent-mindedly said “Takk!” as I exited and I was quickly educated that, we don’t do that here.
“It is what it is.”
If you don’t have anything valuable to add, say nothing. Like, silence is okay.