If they changed the order of the alphabet I don't think my life would change very much. It doesn't matter much to me if h comes before j or after w. The biggest problem would be having to relearn the new alphabet song, the old one wouldn't do me much good anymore.
And our current alphabet song would sound absurd.
Singing it to my grandkids.  ABC...
Grandfather why would such a song exist? Who would write such an absurd song and why do you know it so well.