Do roads actually change that much?
Yes!
And always when you are somewhere where you are depending on Nav!
Lol - I must be lucky then - still have no problem with my 10 year old Tomtom Go 300.....
I've been in a proper pickle in several places with crappy out of date maps - usually somewhere really tricky, like Germany or France when I haven't got a clue or a paper map that has anything like enough detail either.
Having said that, I got lost in Germany last year, in my Mk7, after a recent map update...