They are. Lots of motherboards still include these. There are a lot of special PS/2 input devices that are still around in business/industrial settings and gamers sometimes need them for use with flight sticks, steering wheels, mechanical keyboards etc.

Usually it’s a combo port now instead of a separate port for keyboard/mouse.

I never update my spell book and nothing bad has ever happened.

Help. Infernal imps somehow got inside my sanctum and used my scrying orb to send rude messages to the rest of the Circle.

Microsoft has weird rules with OEMs about selling the same hardware without a Windows license. This might be a way around it.