Actually, using a potion of curing wounds is a listed exception if a friend gives him the potion...
which is so...FRUSTRATINGLY...inconsistent with the VoP RAW & spirit. After all, are you really living up to your VoP if you're on your friend's luxury yacht and eating the food he gives you...from the 12 course meal? How is drinking a potion NOT using a magic item? And if that isn't using a magic item, how is giving it to someone else using it? ARRGH!
errr...back to the point...
Since they're a group possession, he could use them. The group is giving them to him to use.
which is so...FRUSTRATINGLY...inconsistent with the VoP RAW & spirit. After all, are you really living up to your VoP if you're on your friend's luxury yacht and eating the food he gives you...from the 12 course meal? How is drinking a potion NOT using a magic item? And if that isn't using a magic item, how is giving it to someone else using it? ARRGH!

errr...back to the point...
Since they're a group possession, he could use them. The group is giving them to him to use.