It seems like having equivalent sized notes is just your personal preference, and that you are projecting that as an inconvenience onto "the majority". Based on the comments it seems like even people without disabilities mostly don't care, or actually think that it is a good feature.

For my side, even if I did agree with your preference, I am perfectly willing to deal with the incredible hardship of slightly different sized notes in my wallet in exchange for a society where disabled people need not fear being ripped off.