The feeling I am developing is that the success of dating apps correlates with the fact that people spend more and more time working/looking for a job. I am pretty not attractive but while in high-school/university I had multiple partners whom I would meet just in my daily life and I felt it was the same for most of my friends, but when we all started working full time (even doing very different things) everything changed suddenly for most of us. I felt it myself, I had little time to socialize with people because I would spend most of my time in a place where socializing is not only not among the top priorities but is in fact often discouraged (can cause conflict of interests etc). The same thing literally drove some of my friends crazy. After I moved (last year) to a different country for a new job (with a girl that had become my wife by that time) I (we) noticed how difficult it was to simply make new friends. Before, it was really easy to come across so many different kind of people, while now I meet mostly males who did an engineering degree to whom I can't anyway speak much. A very close friend I have of my same age recently told me, during a rather depressing conversation, that I did the best thing by marrying just after having started a professional career with the girl I met in Uni, because trying afterwards is just so much harder. Guys from work who are single just turn to dating apps, or go to courses on seduction etc. I do think a healthy society should try to address this issue, somehow.