I refuse to have a g+ account so now I just operate under my email account. I can no longer comment on youtube (or probably upload videos) but that's something I'm willing to live with. A few times I've gone to comment, had a pop-up to say I need a g+ account so fob it off. \\edit I do instantly realise though that my comment would have been so un-beneficial to the world in the scheme of things that it was probably simply saving my self the time of typing it out. (equally I now realise this post was a complete waste of my life) //edit
If you did everything Google recommend and suggest it would be so intrusive.
By default Google will track my movements via gps (i.e. to about 1m accuracy) using my phone. It will save every search term. It will have my comments on youtube videos placed under my own name. It will have my full name and pictures displayed to the world on a G+ page. Not to mention it reading all my emails on gmail.
From this it know where I live it has a street view of this place, it know where I work, who I am and what I do on the internet. Oh, and it seems it has no issue to just pass all this info onto the security services simply because they feel like being a bit nosy. Thankfully, in the scheme of things and history, we have a government which is generally friendly towards its own citizens (assuming you're white).
It's quite scary to think there are hundreds of thousands of people out there that simply allow these companies their default settings because they're free.
I was having a little peek at a girls profile on facebook the other day. Amazingly she had a picture of her driving license publicly available, fortunately for her I'm not a weirdo, but if I was I would know where she lives, her DoB and full name. Quite scary tbh!
Oh, yeah it was a super pain trying to delete all the g+/youtube profiles so I could just return to using my email!