My brother has some G and H Mallards that are a couple years old but used only twice. The paint is chipping right off. That is crap.
We have this mutual buddy hunting a hollow Canvasback I built for him this year, I stopped by the other day it was all beat up on the paint from the decoy weight slapping it around. I was admiring one of his lathe decoys and I think our signals got crossed because I was saying something about how I wasn't sure the can got so beat up, I think he thought I meant his shelf rider that sees no action was more durable so I got some sort of smartarse comment about decades of decoy making vs a couple years
Plastic decoys are tough on paint sticking, from whatever I've "learnt" on the internet it is due to poor surface prep before painting, but they also flex and have other things that cause paint problems.
One of the saddest days last season was during teal when Elder and I both got our good decoys all beat up, mine a bag of foamers, his a bag of Jobes, on the ride back from a hellish marsh march. We piled the decoys up in the mule trailer for the ride back and the sand on the decoys scratched the paint off them all! He paid good money for his and I paid good labor for mine, it sucked!