If you as a developer make a site today that doesn't work on mobile, then where is your pride. But that's also people problem.
The problem is always people in this case.

And why are not all sites mobile friendly? There are still occasional sites that are not responsive at all, and some that don't render all elements well on mobile devices.

Thank you, kind sir. That would be great. 😃

I came here to get away from the Musk(y) drama 😅
I guess there is drama everywhere 🙄