Yeah, and I’m sure you’ll agree there’s a gap between “my car is a machine that occasionally requires service by someone who knows how” and “my car is a metal horse that should go as long as I put gas in it”. I don’t expect people to be the mechanic, but the second group of people is very much real.
I recently went back to using Thunderbird after not doing so for, I don’t know, maybe a decade. Having everything in one place is very convenient indeed.