Increasingly good news from the Google - the last couple of years have seen their totalitarian insistence on everybody being in everybody else's 'circles' in Google+, whether they like it or not.
There is clearly now a move away from using Google+ as mandatory and all-encompassing social network and leaving it as just another platform to choose from. I have long chosen not to - I really did try! - and am now relieved that you can create Google accounts without being a shiny happy Google Pluser (no offence, btw - it's just not for me!).
This is particularly good news for people wanting to use the excellent Hangouts or even comment on a YouTube video.
Info from here: http://googlesystem.blogspot.co.uk/2014/09/creating-google-accounts-no-longer.html