My workplace is still using four pr five year old Dells with XP Pro installed on all of them. They don't seem too worried that XP support no longer exists.
I can see that, I can see many smaller business and homes keeping XP. It still works, AV on it still works, software on it still works, its just updates and security updates that wont be happening. But in a corporate world, there cannot be an unsupported OS, it cannot happen.