I can cite a personal example.
In the 70s, when I was a kid, my father was able to afford his mortgage, my stay-at-home mom, me, and did I mention we went to Europe every other year to visit relatives in Sweden and Italy? And on those years we didn’t go to Europe, we went to places like Japan, Egypt, etc.
My father was a baker. Yes, a baker.
Purchasing power was obviously higher in the past. How many families could afford to do what I just mentioned on a working-class salary today?
By 2010s standards, I had a childhood of the rich and famous. Yet my parents were solidly working-class.
Now, ask yourself, if your dad bought your mom a washer and dryer, how many hours did he work for it? How much of a proportion of his take-home pay did he spend for them?
Now I have two siblings who are worth more than a million and maybe a third, but my older brother won't tell me how much he has. I live in a nice home. Last year I visited my youngest brother who was struggling financially for a number of years. His house is nicer than mine. In short, I might be the poorest member of my siblings, and I did alright. Most of my siblings have traveled extensively overseas. We all have a lot more than what my parents had material-wise.