If you need to keep your head 2cm from the screen perhaps your glasses need to be replaced.
My vision is 200/20 and 150/20 and I'm able to read the interface without too much trouble.
A UI resize doesn't seem to be required if you ask me. There are third party solutions for the visually impaired.
If we ever see the 1080p resolution actually finished maybe we could get a UI resize alongside of that.