Before social media people had to meet face-to-face in order to date and they had to break up face-to-face in order to end a relationship. This forced people to develop social skills at a young age that are required to form a family.
Now people can date someone they never met and break up by ghosting. They can get to a preliminary relationship without acquiring social skills. There are also online equivalents of a mate that seem good enough if you don't understand the benefits of family.
I try to avoid social media and it makes my life much more sane. It forces me to go out and socialize with people.