A recent CAT decision about smoking rules contained the following in its introduction:

“ … this Tribunal has identified concerns with the use of the term “grandfathering” generally, as its origins are problematic, notwithstanding its long-standing social usage. The Tribunal believes that the term “grandfathering” is better understood as creating “legacy” provisions. However, the term “grandfathering” will still be used herein, as the parties used it, and the Respondent’s Rules themselves refer to the term that way.”

Which led us to educate ourselves:  https://en.wikipedia.org/wiki/Grandfather_clause

Which requires us to do better –  let’s usher in “legacy” provisions!