Another aspect, similar in origin: 'The bees are dying so we should plant flowers' which then gets misinterpreted and implemented as any flower, native or not, apt for the local population of wild pollinators or not; specifically using the term pollinators here because yet another aspect is some people only think of bees and not everything else.
As a result I can buy seeds everywhere of species which a) are not useful for any species except super generalist ones (e.g. honeybees) or b) are sort of native but are grown in other countries and have slight genetic variations resulting in them not being visited by native pollinators because e.g. the pistil is just a bit deeper so pollen is too far to reach. Shops where I can get seeds from local plants which also have been grown locally on the other hand are very rare.
But that's theoretically not a problem since proper grassland/meadow management normally automatically results in the plants needed by the native pollinators (this is backed by science, but anecdotal evidence of which I'm still too excited not to share it is that after changing the mowing cycle on land we bought we easily managed to get less grass and more flowers like Campanula on which last month we found a couple of specimens of Andrena Pandellei which is extremely rare here). But in practice we're then back to the original problems of habitat loss, too much fertilizer, ... making the amount of decent meadows and other types of habitats way too rare to be sustainable. tldr; we messed up in the past, and are still doing so, though on the upside I do see changes here and there, also by governments.