I plan to use XP for at least a few more years but Microsoft even disable the Microsoft Security Essentials update for XP (which is the only thing protect my computer).
I still use my XP machines from time to time, I really enjoy the OS and there's still a modern web browser that works on Windows XP. MyPal makes it so you can still do modern things on XP, which is crazy because the OS is 20 years old now. For me, Windows 7 is still my most used OS, but I love going back to XP once in a while, even with Windows 10 being what I really need to use these days.