I think the fundamental thing is that keeping up to date involves both user interfaces & operating system versions as well as work processes and interfaces. You

I think the fundamental thing is that keeping up to date involves both user interfaces & operating system versions as well as work processes and interfaces. You cannot develop just one of them without considering the other, and because the system needs to work as a common process with unified working methods and tools, it means that everyone needs to adapt to both. Yes, there is too much fiddling with the UI in the industry, but continuing to use 1990's operating systems without updates, just because people don't want to change their ways of working... that is not sensible.