Don't understand why usb-c to hdmi is blocked on mobile

[Lisasol]

What's the actual reason, that makes no common sense, that I can't output sky go from my phone to my tv in the caravan by usb-c to hdmi but I could from a laptop or console (that i don't have at our caravan)?

If it's rights, which it can't be, then why allow it from a laptop or console but not the cable from a phone?

Makes no sense and is incredibly irritating... can Sky not just allow it by cable at least from an Android phone? Would an old Windows phone be any different?!

[Annie+UK]

Mobile devices that have their own screen have to use saud screen, Laptop/PCs onect to monitors via HDMI so are hard to restrict and games consoles need extra subscriptions to be used

[TimmyBGood]

@Lisasol 

One suspicion is that Sky would have liked to block computers too, but as @Annie+UK indicates that's essentially not possible in either Windows or OSX / macOS

It is however easily achievable on Android and iOS.

There's no current Go client for Windows Mobile, which is hardly surprising given that operating system ceased development in 2017.