It's about attack surface. Microsoft can't go on supporting security updates and patches for all its operating systems forever. People need to move on so a mode

It's about attack surface. Microsoft can't go on supporting security updates and patches for all its operating systems forever. People need to move on so a modern platform can be provided with a minimized attack surface that the security team can concentrate on. If I were tasked with maintaining patches for XP SP4.9 2017 I would probably just shoot myself.