Italy is doing so since 2011, and it seems to be working just fine.
Fines allow businesses to judge the merits (and timeline) of shifting according to their needs. Bans force everyone to shift simultaneously. Ceteris paribus, bans promote incumbents while taxes facilitate new entrants. (TL; DR Britain versus Italy's economy.)
A small fee seems like a good halfway point between having no fee and an infinite fee.
It’s the probability of getting caught times the cost of the punishment. That’s the other problem with a ban. “Probability of getting caught” being a cost center, authorities prefer giant fines with low enforcement costs; this results in a system favouring the politically connected.
isn't that kind of the point?
There are microorganisms that eat certain polymers (PE), but I don't think anything will ever eat PTFE (teflon)
I'd bet that switching away from teflon frying pans you'll help the environment more than getting rid of a life time of PE bags. F chemistry is super nasty
For that matter, most people probably have more PTFE in their plumbing than stored in their kitchen cabinets.