In my country lower income people usually save money first (even if they need to save for a long time, like a year or two), then buy expensive items, like furniture.

Typically it works like this: people simply try not to spend their whole income, and save at least some part of it. Then, when they arrive at a significant amount of it they sit down and think: what can we do with those money? buy a new car? redecorate our living room? And if they decide to redecorate they buy furniture or whatever is needed with cash. Buying stuff on credit is pretty much unheard of.