You're probably right about that. A lot of people grew up without dishwashers and don't have a way to economically install one outside of a major kitchen remodel even if they have the space which many in cities don't have. They're also not the, for lack of a better term, necessities that washers, stoves, and ovens are. And, of course, dishwashers don't eliminate the need for any handwashing and if you aren't cooking or doing a lot of entertaining a lot, they may not be all that useful. I do cook but still probably only run my dishwasher 2 or 3 times per week.

I have a rule that every single item in the kitchen goes into the dishwasher. If it doesn’t survive oh well - survival of the fittest.

The only thing exception outside of size that I can think of are the fancy knives. But we have an everyday set I don’t mind dulling and just sharpening once a month with a basic sharpener.

Everything used immediately goes into the dishwasher during the day, then before bed it gets ran full or not. Dishes put away with morning coffee and the cycle repeats. No dirty dishes cluttering up the kitchen, and no wasteful (water and time) hand washing required.