It depends heavily on where you are in life and what demographics you belong to. If you're a guy in your 40s with a wife and kids and a white picket fence there's probably no harm in quitting. I was drawn to social media (and earlier forms, like forums and IRC) because I grew up in a backwards, repressive rural community and was outcasted in school and was able to find "my people" online. Online social communities are how a lot of people who are rejected by society due to disability, sexual orientation etc. get all of their positive social interaction from.