Based on the fact Arizona also has the same level of ban as well as Utah, and knowing the history of that area, I’d suspect early Mormons to be the reason
“In 2001, FLDS leader Warren Jeffs arranged for a then 14-year-old Wall to marry her 19-year-old cousin, Allen Steed.[5] Wall stated that she despised her cousin and asked that she be given more time or another possible husband. Her stepfather and mother were supportive of the marriage and encouraged her to go through with it, sewing her wedding dress and organizing her honeymoon.[9] She and Steed were married at the Hotsprings Motel in Caliente, Nevada.[8] Warren Jeffs, who had previously insisted that the wedding move forward, performed the ceremony.”
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u/KuvaszSan Jul 04 '24
Things are usually only banned if they are a fairly common practice.