You can use single use plastic bag 50 times or more before it deteriorates, not the thinnest kind, but the average one. They are incredibly strong. The dedicated mult-use ones are insanely strong, but also few times thicker and more unwieldy.
Like with single use shaving razor. They don't need to be literally single use. It depends on the user. You can use it as long as it serves you.
The best thing limiting access to plastic bags did was familiarizing people with the idea of taking bags to the market.
If this is really true, why does Gillette advertise their high-end, multi-blade razors as multi-use? For their top product, they say "up to 20 comfortable shaves".
Sure, in this case you usually don't buy a single use razor, just the blades. The blades are sharp enough to use them multiple times, but if you don't want inflammation, then it's recommended to only use them once. Search for Wilkinson Sword blades.
Like with single use shaving razor. They don't need to be literally single use. It depends on the user. You can use it as long as it serves you.
The best thing limiting access to plastic bags did was familiarizing people with the idea of taking bags to the market.