It is literally crisis level in this country. Politicians need to quit with the 1950s mindset and realize demographics are much different now, and it isn't because people are staying single thanks to downpayments on houses or even student loans. This is a permanent trend, especially for women. It is not a "delay" to get married but a permanent alternative. This is what pisses off men like J.D. Vance. Housing issues are extremely acute for single adults, but politicians act like everybody is married, and married young, with kids. Single adults do not get discounts for housing, medical care, groceries, gas, and everything else necessary to live.
It isn't just "single family homes." JFC, the issue is most acute in that there is not enough affordable housing for everybody, especially single adults with no kids.
Same is true for the plight of women in old age. They aren't all widows and divorcees and in fact they are better off financially than women who never marry. A lot of that has to do with survivor benefits for Social Security (and pensions) plus "homeownership," where the house can be sold if need be.