I can't explain what the previous poster was thinking, but Unicode is frustrating to work with. The problem is, that frustration just replicates the reality of the human writing systems Unicode captures. Nobody invented weird nonsense to make your life harder in Unicode, millions of humans developed a variety of weird nonsense to make their lives easier, over thousands of years and Unicode captures most of it.

Case for example, why the heck would there be exactly two versions of A, one of which usually only appears at the start of words, and not always? Other people's squiggles don't do that, but notably several European writing systems (Latin and Cyrillic) do. People who use those systems think ABCDE and abcde are somehow "similar" even though they don't seem very similar at all. Then they're surprised other people don't do that.