We simply have too much software that only runs on; and too much staff schooled for Windows. You’re right that we could change if we wanted to, but it’s just hard to justify such an investment in an area where it would mean that we had to fire teachers and nurses to pay for it.
We don’t even have a good business case. I mean, our total Microsoft licenses are around the same expense as 4 employees. It would be literal decades before we brought the investment home if we made a full switch.
That doesn’t really work in political organisations, and it’s likely why all the previous attempts to switch have failed. To do this, we’d need massive public support for it, so the political leadership doesn’t get cold feet during the “short” term investment, and the truth is, the public couldn’t care less.
That doesn’t mean we can’t get there eventually. We try to buy more and more open source, we set up co-operations across municipalities to define architectural standards so suppliers can’t define our infrastructure anymore. But it’ll take a long time, and maybe it’ll never make sense to leave Microsoft. I mean, what’s the open source alternative to office365?