Household dishwashers in Ticino?

I'll soon move to Lugano (I was originally based in Lausanne for some years), and now I'm looking for an apartment. An interesting observation during this was that, even in an expensive apartment, there was no dishwasher. Well, some had for sure, but not as common as I expected.

I know this is a v----ery naive question, but is having dishwashers at home in Ticino (or Lugano) not so common? If it isn't, do people in Ticino usually wash dishes by themselves?