Yes. Switching computers on my KVM switch (scroll lock + console number)
I'd have to question that (not that she has to do it or the reasons she was told, but the supposed reality that elders can't read normal text as well as caps). One of the pieces of research that was done here in the 1950s resulted in motorway road signs in the UK being in mixed case rather than all caps - it caused howls of anguish from old-timers resistant to change - but the thing is words with lower case text have more of a shape - for instance "Manchester" can be resolved as the word "Manchester" much faster than "MANCHESTER" - it was found you could read the mixed case before you could even resolve all the letters because you could recognise the shape of the word, given that lower case text has more features like ascenders and descenders. Hence all UK road signs ever since have been in mixed case.
Drones are subject to the same rules that RC aircraft are subject to.
It is however extremely hard to enforce. RC users are generally pretty responsible - they've probably spent many hours building their aircraft, and during this time it has sunk in the dangers they can pose, and usually they've joined a local club to help them learn to fly their new expensive aircraft and the club will also coach them on safely operating their aircraft.
Drone users not so much. Many of the ready-to-fly drones require pretty much zero skill to operate, so people can take off and cause mischief pretty much straight away.
Or put simply: extraordinary claims require extraordinary evidence. We have an extraordinary claim here - highly extraordinary - but the evidence falls very very far short of being even just ordinary, let alone extraordinary.
The one day you'd sell your soul for something, souls are a glut.