I can see the point of this option, but frankly don't understnad why it would be so hard to explain to people. Yes, you want it to be as intuitive as possible, but also... how many people do you have playing your machine?
I'd say MOST people don't have a random person on their machine everyday. A small instruction card, or a few button labels, or a minute's worth of explanation will do the same thing IMHO.
personally, I don't WANT people to be in my menus. I think 3000+ games are plenty to play, and if someone WANTS to play a SNES game or the like, I'd have no problem pressing the 4 or 5 buttons needed to make that happen. That's just me though.