I have one ISA Brown, which I think is about the same as a Red Star. She is my best egg layer. She is also the most friendly hen I have in the coop. In the morning, when I open the coop doors, she runs up to me and wants to be petted/held. The other hens just look at me and don't care much unless I have food in hand.
My Ameraucana lays nice green eggs for me. She is currently in molt so it has been about a month since I got any green eggs. But she has been a very good layer.
That's really nice. I shred my paper in my little paper shredder. The shredded paper gets thrown into the coop and mixed with everything else (wood chips, leaves). Works just fine there.
If you are dumping the shredded paper outside, just try to mix it around. Otherwise, you might end up with a big pile of paper Mache if it rains and gets wet. When you mix the shredded paper into everything else, it really composts fast.
It is great that you can share your chickens with your granddaughter. Good to hear she is excited about it.