Just got back from a trip up the middle of America to the Dakotas......most everyone had a higher pitched voice and although it was very strange to me, it was clear and totally intelligible. Of course, no one had a problem recognizing we were from Texas. As long as it is clear and easily understandable, it doesn't really matter much...does it? After all, it is only strange if you are out of your area...and then the strange one is....you!
I did have a girl at a convenience store in Nebraska ask me to keep repeating "y'all" several times...she said she just liked to hear it from a certified Texan. With a little practice, I think she could get a handle on it..she was sounding almost Texan, but in a higher pitch!
I have often said that if I had a daughter or granddaughter, this little angel has the voice I would want her to have. Just lovely to hear ever word she speaks.....soft and clear, a mix of a refined lady of Georgia and a true Texan in a blend like I have never heard anywhere on earth. Your daughter would be very fortunate to have her voice!
Regards!