The "bells" aren't great, and the bars are much more narrow than any other form of mallet instrument the kids play. Why not buy a few practice xylos or marimbas for the school, or let kids rent or rent-to-own them from the music stores?
I know cost is a factor, but if you're putting all the kids without financial means on percussion, you're causing a different set of discrimination issues. Percussion shouldn't be the "cheap" option when it really isn't in the long run, with needing to buy all the various sticks and mallets.
And the practice pads.. yech. Nearly everyone I know prefers the rubber RealFeel type pads that you can buy to the pillow pads you get in the kits.
So why is ANYONE still recommending bell kits?