The key factor is commitment

"The key factor is the commitment required to make relationships work. When people are raised in a community that they cannot easily escape, they do what our ancestors have done for millions of years: They learn how to manage relationships, and how to manage themselves and their emotions in order to keep those precious relationships going. There are certainly many online communities that have found ways to create strong interpersonal commitments and a feeling of belonging, but in general, when children are raised in multiple mutating networks where they don’t need to use their real names and they can quit with the click of a button, they are less likely to learn such skills."

"The Anxious Generation: How the Great Rewiring of Childhood Is Causing an Epidemic of Mental Illness" by Jonathan Haidt: https://a.co/1HWOxQn