It’s been an issue for decades. Two cases illustrate that point.
Mary Margaret Begay worked at the Bright Angel Lodge in the famous Grand Canyon National Park in Arizona (USA). A friend of hers stated they had last seen Mary going into a vehicle with two men on August 1st, 1956. That was the last time the nineteen year old was ever seen. (Source https://www.namus.gov/MissingPersons/Case#/39937/details?nav
Not even a few months later, 25 year old Ida Mae Lee would go missing as well. She, just like Begay worked at a hotel in the Grand Canyon Nation Park in Arizona and was reported missing and was believed to have been last seen on Novermber 1st, 1956. (Source https://www.namus.gov/MissingPersons/Case#/34305/details?nav