Growing up, nobody in my home ever used the word y'all. I thought, like a lot of Northerners, that it was a word primarily for Southern yokels, like victuals, crawdad, and cement pond. It wasn't until I got down to Ohio University that I found how useful the word y'all is. In Latin class, we translated words like vos as you (plural), and words like amamus as you (plural) love. In Athens, Ohio, in the foothills of Appalachia, vos was y'all and amamus was y'all love. This, I had to admit, was a much more graceful way to put it.
But it wasn't until I lived on the road that I started actually using the word. I'd been in Lexington Virginia all of a week before one of my students raised his hand in class and said "Miss Brigid, you just said y'all." So I had, and I've been doing it ever since. I wasn't out of the South long before I gave up finding decent grits, came to accept the fact that my being a lady didn't require that people open the door for me, and stopped expecting long and friendly conversations with every stranger I ran into on the street. But I never did give up the word y'all. It's just too useful a word. And the fact that so many people up North seem to think themselves too good for the word is just silly. If I walk into a room and want to ask everybody in the room a question, why on earth would I use you singular, causing people to not know whether I was talking to them? Where once I thought that people who used y'all sounded ignorant, I know feel it's a little ignorant not to use it.
This is not at all related to my post.
As for ye aw giving birth to y'all, I'm dubious. Sounds like a case of making a horse into a zebra to me. Sure, the fanciful expression is more interesting, but you can't really ignore the fact that y'all is a contraction for the garden-variety you all. But then, the Irish are pretty much awesome, so we can go with ye aw if y'all are amenable.