Yes they do. I’ve worn glasses for over 25 years and until 2 years ago I could still read close up with my glasses on but not anymore. My near vision is perfect but it’s now impossible with my glasses on. I also wear contact lenses for golf/cricket/skiing and not being able to read with them in is a real problem. I’m now getting reading glasses to reverse the contact lenses!
You are saying that distance glasses impair your near vision? Mine (I still hav some) don't impair mine. They have no effect. So you are saying you can read fine with no glasses, but when you put your distance glasses on you can't any more but could in the past? Weird. Why not simply take your glasses off when you need to read? If your problem were commonplace everyone with a vision issue would need varifocals.
Let's fac it.....its you, mate.