LOOKS like a sacrificial garment to me
there are also Mormon garments that look like underwear
https://archive.is/q8bzy
https://www.scientificamerican.com/article/extended-adolescence-when-25-is-the-new-181/
By Bret Stetka on September 19, 2017
Extended Adolescence: When 25 Is the New 18
It is a common grumble that children grow up too fast. No more. Teens are in no hurry to embrace the putative joys of adulthood
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https://archive.is/z8e5u
https://www.npr.org/templates/story/story.php?storyId=141164708
Brain Maturity Extends Well Beyond Teen Years
October 10, 2011
Under most laws, young people are recognized as adults at age 18. But emerging science about brain development suggests that most people don't reach full maturity until the age 25.