Comment by boh

People who live on the internet assume this is true because they only deal with people who also live on the internet. Just because we're not all documenting everything that we do to a nebulous public doesn't mean it doesn't happen. Much of what happens in the social world isn't articulated or available for scientific study. You might be surprised to know that bars, clubs, gyms, concerts, trivia nights aren't empty. "In decline" is the sort of state that's can only be articulated in abstract terms. Stop rationalizing your loneliness as a societal ill. Getting to know people is your problem and society offers many solutions.