No. I would (and indeed I used to) let my younger brother play my games, but he never treated them properly, always leaving the disks lying around out of the boxes, resulting in them getting scratched and not working. So now I don't let him. He obviously still hasn't learned, since he still never looks after his own games properly either.
It's not really an issue any more anyway, since I'm primarily a PC gamer, and my brother mostly uses his 360.
It's not really an issue any more anyway, since I'm primarily a PC gamer, and my brother mostly uses his 360.