Rustle
The PPL exams are just that, exams, same as O-level, college, degree exams the purpose is to sit an exam and not to show you know anything practically useful
I know this is a favourite topic of mine but one doesn't learn stuff in the PPL that's really useful for going to places. No doubt, because most PPL holders don't actually go anywhere by the time they let it lapse. (And many people do point out that they just like to fly around locally without going anywhere - perfectly legitimate).
If a large % of new PPL holders suddenly started doing 200 mile x/c flights, incl. going abroad, and navigated the way they've been taught in the PPL, I GUARANTEE all hell would break loose and the whole training setup would need to be overhauled.