Some study reports that college kids hookup and don’t date anymore:
In contrast, a hook up is a casual sexual encounter, which usually occurs between people who are strangers or brief acquaintances. For instance, two people meet at a party where they have been drinking; they flirt and engage in sexual behaviors from kissing to sexual intercourse, with no commitment to a future relationship.
…For both men and women, the number of hook ups was nearly double the number of first dates.
Although, the Big Think makes an argument that the whole study is flawed:
The authors acknowledge that theirs was a “sample of convenience.” 221 subjects completed the 20-minute pencil and paper survey. They were all undergraduates, mostly freshmen, at James Madison University, a public school in Virginia. Their average age was 18.72 years. Women subjects outnumbered men by more than 2:1 (presumably because there were more female psych students in need of research participation credit).