My kid, 10 years old, who's only used to some game u.i. (rts games) never ask me how to navigate in MoI.

He can after 5 minutres moving objects, duplicate, and navigate without problem.
As every tools are visible in MoI, in fact no shortcut are needed at a learning stage, you only configure shortcuts when you
really want to speed up some modeling tasks.

I don't really understand the problem.

(as a comparaison, he was never able to do anything with Blender, ... I mean ... really nothing. I myself had to
read few docs/tutorial to more less understand the navigation :))