is the possessive apostrophe disappearing from the English language?

Should it be "Parents' Day" or "Parents Day"; "Ladies' Room" or "Ladies Room"; "Supervisors' Booth" or "Supervisors Booth"? In fact, is the possessive apostrophe disappearing from the English language? 

See my language awareness article in Ming Pao today: 

 https://news.mingpao.com/pns/%e8%8b%b1%e6%96%87/article/20210623/s00017/1624385940994/%e8%8b%b1%e8%aa%9eguide-is-the-possessive-apostrophe-disappearing