Nothing wrong with that at all, as far as I can see.
Personally, I'm quite happy flying in my local area in 5km vis, but I wouldn't want to go much further afield - the additional workload of navigation would probably be too much. On the other hand, if I have someone sat next to me who can concentrate on the navigation, and just give me headings to fly - or vice versa - then the workload for both of us is well within comfortable limits. I've never done this, but I'd have no problem doing it if the situation arose.
FFF
--------------