A lot of languages change their script for political reasons, rather than for convenience, and it shows.
If your language has more than 0 diacritics or if you have eight pronunciations for words that have an "ough" in them, then please re-evaluate how you write stuff down.
I can't imagine the billions of human attention-hours that have been lost to learning/editing/being confused by awkward writing rules. Obviously not only the script, but the spelling too.
Mrs. Delaney made me cry in first grade on my 6th attempt to spell "elephant" and I'll never forgive her.