I really wonder how many PPL's follow the military rule of thumb of roughly 3 hours prep for 1 hour's flying & how many of these incidents start on the ground??
You must be joking!
I reckon an hours planing would cover anything in the UK with the benefit of a reasonable moving map and some experience.
The GPS & the map itself become a back-up to keeping Mk1 eyeball outside & looking for stuff :-) The GPS is a wonderful get-home, but some have delays of several seconds in updating position & you should know where you are to start with, right?!?
No idea what you are talking about.