macOS users aren't that good at upgrading regularly, but iOS users are at least obsessive about upgrading to the latest OS. I guess the system almost forces us.

The workaround my friend uses (unintentionally) is being completely out of storage on her phone.

I still deploy CoreML features to iOS 15. Many devices in use can’t upgrade to 26/27

Of course, you caught me thinking like an Apple engineer. I forgot about older devices in circulation, and that's super important.