My son deleted all his accounts when he graduated from high school. Said he was sick of it all and wanted to start off college without it.
But I definitely missed last year (scholastically), and i feel that all the social network are addictive, so I am trying to avoid them (I only use Facebook through Messenger, I don't have Twitter, but it never took off in my country, Snapchat). I also don't use Youtube, because it is for me the television of the 21st century.
I am going back to college in 2 weeks, and I am slowly deleting all of my last online accounts.