Comment by StopTheWorld

Professor Michael Rosenfeld at Stanford does research on how heterosexual couples in the US meet ( https://web.stanford.edu/~mrosenfe/ ).

In 1940, over 50% met via friends or family. About 36% met at school.

In 2021, about 20% met via friends or family. About 10% met at school. Over 50% met online. So the majority of US couples are now meeting via profit-maximizing corporations. He has a 2019 paper on this (and it has only increased since that paper).