Once you've got your PPL its a dufferent matter.
Intrigued. Pray expand. Are you saying that the non pi/c can log flying time if he's physically at the controls?
Only reason I ask is that my regular flying buddy isn't a member of one (of the too many, I'm up to five at the moment) flying clubs I belong to therefore he can't log flying time as I have to be Pi/c of the a/c from that club even if he flies the whole flight apart from the take off and landing.