I was likely the one who mentioned a Christian denomination/community which had shawls at the back of the church. We never had such while I was Rector of St. Athanasius Anglican Church.
I was likely referring to the churches in the communities of Woodford County in Illinois, where my wife’s father and his ancestors lived. They styled themselves Apostolic Christians, an Anabaptist group from Switzerland. My father-in-law’s grandfathers/uncles immigrated to that part of Illinois in when it was mostly swamp and bog. They knew how to drain such land, so they purchased many thousands of acres of it for a song, drained it, and made their fortunes in agriculture - not mega rich, of course. Just very prosperous.
When my wife and I visited that area about 20 years ago, we noted that the AC women in the community still covered themselves in public. Their hair would be gathered into a bun at the top/back of their heads, and that bun was then covered with a smallish “cup” of cloth.
The covers the women wore during worship were standardized in size and shape - bands of cloth about 3 inches wide and 20 or so inches long which they draped side-to-side over the top of their heads. The standardization went a long way to frustrate any notions of showiness or fashion.
It was some of these bands which their church buildings had at the entrances for the use of visiting women who ordinarily did not practice this custom, or for women who inadvertently forgot the standard covering when rushing out to worship in a crowd of their own children.
At St. Athanasius, covering was never “enforced,” Most women and girls covered, but women who settled in with us would soon adopt the custom on their own. Interestingly, it was the girls who seemed eager to cover.