Some car dealers were doing this very thing. A few years ago I was testing driving a Lexus and the salesman was going to let me take the vehicle home for two days.Luxury product market doesn’t work like that though. Do you see a Rado or a Tag Huer Watch being given out for a “test drive” or Samsung handing out a couple of their 4K TVs for users to try.
Bottom line is that smartphones are consumer tech market and that type of trial stuff doesn’t work with things like that.