In essence much of what you say makes sense.
I do consider myself better equipped than some of my peers. I do not use many of the apps you mention.....no snapchat, no whatsapp. I distrust them in the way that I distrust facebook(and yes, I know it is all down to the intelligence of the user)
These apps have no relevance for me. I sometimes use FaceTime, but really my iPad is just a convenient way to have access to a computer in a portable format.
I am not contactable(other than e-mail, and I can ignore those if I want to).
I won't be buying an iPhone. I have a mobile that lurks at the bottom of my bag....it has no camera, no internet access.....it is just a phone......and only used to summon assistance if I need it.
I know it is old fashioned, but I do not feel the need to be in constant contact with folk......many of whom I am trying to avoid anyway