I do have all the Blurays. They're collecting dust in the garage ;)
My kids are only 3 and 2. They would probably destroy the disks and the player in no-time. Also: I don't have a Bluray player connected to the TV (apart from the Playstation, which I definitely don't want them to fiddle with yet). I use an old computer to rip the discs.
I might let them use the discs when they're a bit older.