We gave different legal names to two of our children who have Hebrew names that contain a “Ches”, but they never go by that name except when they’re at the doctor. Of course that will change once they get older and need to fill out legal documents.
Here’s a story that I found amusing-
Shortly after my son turned three we went for a walk and the wind blew his yarmulka off without him realizing it. I called his name to get his attention and then a voice from behind me said, “Hey Chaim, your yarmulka fell off”.
I turned around to see that it was an African American who said it. He had a smirk on his face so I asked him how he was able to pronounce it.
“During the week I’m the bus driver in a Hasidic school. The kids always ask me to stop by their Shteeble on Shabbos for some cholent and a L’Chaim.”