bananamummy and many don't, for example:
Jane, Helen, Emma, Sarah, Louise, Alice, Lucy, Anna, Eliza, or even
John, William, Edward, Thomas, James, George, David
I'm sorry but having an unusual first name I never wanted our DC to have to go through that; I had a very unusual maiden too and have an equally unusual married name and there was no way our dc's first names were going to have an alternative spelling.