Just about everybody over the age of 45 or so will have vision problems, that's the point.
John,
I am not disputing the disadvantages of "Live View" on rear-screens (all of the time for some people; some of the time for all people), and would not accept it as the only VF option an anything but a very compact "24/7 availability" camera. But plenty of us do not need to use the "arm's length" method (and I am well past 45), so I will protest whenever yet another post claims that this is as a universal limitation of using Live View.
[Edit: after all, the first "arm's length" comment in this thread, post #7, is about a "young person" who likes Live View, not us presbyopic geezers.]
Also there are tools that can sometimes enhance Live View usage: tripods and bifocals!