Sort of a pointless statement. Even if 1,000,000 celebs do this every other day for sick kids across the world, it's special every time when that kid lights up. Any experienced doctor in the world will tell how much a positive attitude will go in the healing process.
I saw a manchester city player visit a manchester united fan in hospital lol, all I am saying is don't treat this any different to any other celebrity that does this because there are many, christian bale did like 17 people who were shot in the colorado during the dark knight rises movie. Now that guy is a true saint