As far as I know, people have always practiced/learned alphabets by reciting/writing them one-by-one, in the "standard order", over and over again. We did it ou

As far as I know, people have always practiced/learned alphabets by reciting/writing them one-by-one, in the "standard order", over and over again. We did it ourselves at school, too. Maybe that's why it's so retained - we just can't imagine any other order :) And authors of new alphabets were probably already versed in other alphabets and had to learn their "standard order".