Missing markets in everything?

Or do the offer curves simply not intersect?:

Just over half of Americans between the ages of 18 and 34 — 51 percent of them — said they do not have a steady romantic partner, according to data from the General Social Survey released this week. That 2018 figure is up significantly from 33 percent in 2004 — the lowest figure since the question was first asked in 1986 — and up slightly from 45 percent in 2016.

Here is the story, via the excellent Kevin Lewis.