It's private

In my research on trust in social media, it surprised me to find reading the statistics on the social media that on the subject of privacy; the 18 to 29 year old users mistrusted the social media sites at twice the rate older uses distrusted them. pewinternet.org/ The younger the user the more they valued their privacy, removing tags from photographs, and having negative comments removed from posts. It was not just one area that younger users were more cautious but in every aspect of the social media.
I summize the reason may be that they are more aware of  their posts being read or the photographs being seen by prospective employers. The older users may possibly have the cynical view that no-one would really want to look at all these photographs or posts, a view that may have come from watching too many old home movies or wading through a library of photograph albums, filled with fading memories.Oh, for the days gone by of the Box Brownie camera.