I still can't believe it how these kinds of things are not OBVIOUS to ALL UI and UX designers out there! This resources should be drilled into every UX/I design

I still can't believe it how these kinds of things are not OBVIOUS to ALL UI and UX designers out there! This resources should be drilled into every UX/I designer's head. It's amazing how much pain and frustration can be avoided by following such simple rules. I imagine a kitten being squished in a blender alive every time I see checkboxes used as radio buttons... or people avoiding to use radios and toggles where they make clear sense... The hell with material design and all the other fads, learn these basics first please and don't screw them up!