That all makes sense and that you mention it, old people are being replaced by something / someone who should buy stuff. Bottom line is people are not buying stuff because they are not able. People without work don’t buy much. Any other reason people don’t buy much?
Too few dollars chasing too many goods. Many years ago that is how my Dad explained the Great Depression. Not there now but could be.
Like so many things, the answer from the FRED is in plain sight.