Both of my nephews prefer to shoot their 20# longbows I made them Au Naturel without a tab or a glove. I tried to get the oldest one to use a tab I made for him and he took two shots with it and threw it on the ground. He said he likes to be able to feel the string........go figure?
Charlie Lamb made a post where he tied the nocking points on above and below the arrow nock and made them long enough to cushion the fingers on the string. Not sure what he used or exactly how he did it, but you might look it up or send him a PM about it? I had thought about doing that to a couple of my bows, but I like the ability to adjust the nocking point up or down with a simple pair of nock pliers, tying them on would eliminate that option. But for your little granddaughter I'm sure it wouldn't be a problem. I think he used B50 for the tied on nocks if I'm not mistaken? Don't quote me on that though.