I hope this becomes a reality - we really made an mistake introducing these, I think.
The hard part, I suspect, will be regulating all the different forms of "forever chemicals" and not having it be a perpetual game of whack-a-mole where chemists figure out ways to slightly tweak the structure of the chemicals so that they effectively replicate the function of PFAS without triggering the definition of PFAs. We're already pretty hooked on the usefulness of PFAs for all sorts of stuff (clothes, containers, etc) so going cold turkey is going to require some sacrifice.
The hard part, I suspect, will be regulating all the different forms of "forever chemicals" and not having it be a perpetual game of whack-a-mole where chemists figure out ways to slightly tweak the structure of the chemicals so that they effectively replicate the function of PFAS without triggering the definition of PFAs. We're already pretty hooked on the usefulness of PFAs for all sorts of stuff (clothes, containers, etc) so going cold turkey is going to require some sacrifice.