You really think no one uses CD/DVD and Floppy Discs anymore? Well, then I don’t know why Amazon and WalMart are still selling them. Maybe someone just had some extra plastic/aluminum lying around the factory and didn’t know what to do with it?
Anyone still working with certain old tech is doing so likely because they have to. For those people, Macs have NOT been a suitable solution for a number of years now. And, those people that have a Mac and STILL want USB-A, well, they’ve either bought a system WITH USB-A or they’ve since bought a device that enables that (just like folks that need to still burn discs and access content on floppies). And this means… if they buy a NEW Mac… with no USB-A ports, they’ve ALREADY got a solution that works for them.
Now, I would imagine there ARE those that really LIKE USB-A devices. If they own a computer with no USB-A ports and yet purchase a flash drive that’s USB-A only… I mean, everyone’s free to do what makes them happy I guess. Just like if someone has a system with perfectly capable bluetooth connectivity but they REALLY want to use a proprietary wireless receiver? No one can force them not to.