The technology sounds not far away. It’s fascinating.
Using a mouse that controlling a computer was the only way apart from input command lines due to the limitations of technology. It needed to get used to it and training mental mapping between seeing a 2D monitor (virtual objects) and controlling a 3D area with a mouse (real object).
I remember my parents found out dealing with a mouse was hard. Then, they got touch devices. It made sense to them using touch devices; you touch the target, you get its reaction from it.
Gestures with interacting a computer could be more personalized whenit learns the owner’s movements as the command. Mouse input is monotone interaction, whereas gestures are not.