I would also somewhat argue that "most" cards are chip and signature, not chip and PIN. While in the US my cards all prefer PIN, it wasn't until I got out of the US that for some reason they all wanted a signature - talk about irony.
It's still far from ideal and not nearly as rigid as it is in Europe, but it's not quite as bad as you seem to think it is.
Several years, huh?
Even landlords who are notoriously cheap and low-tech, are moving away. So called checking accounts don't give you a free checkbook any more, in my experience. I don't think I've had to wait for a person writing a check at the grocery store in the last 20 years.
I don't think some landlords requiring checks (in my case almost a decade ago) mean the USA hasn't moved away from paper checks in general.
People often generalize one group by the actions of a tiny fraction of its members, while comparing to another group characterized by the actions of the vast majority. It was particularly blatant here.
I'm not sure what you're talking about. All my cards have chips, and I'm in the US. And for several years, I've been living in an apartment which takes direct bank transfers for rent rather than paper checks. Landlords in my experience have been the last holdouts that don't want to stop using checks. Contactless payment I don't use, but I know it exists in the US because I see signs when I check out.