Oldies on line

The trouble I'm finding with using Facebook, Twitter and even email and texting is that so many of my friends are so reluctant to expose themselves on line. Some say they are afraid (paranoid?) of who will find out all about them, some haven't picked up on on-line manners, maybe it's also Scottish reticence. Mind you there hasn't been a rush to the miniMOOC by the younger target audience. Do we just keep plugging away or are there some techniques we need to develop?    #SCEminiMOOC