I was at a lunch where the parents were peeling grapes for their 15 month old and I secretly rolled my eyes and thought it was lame. Well fast forward to today....LO loves grapes, I don't peel them, just cut them in half for her to eat (she's 1.) She had a big poop diaper and.......undigested grape skins! They looked gross and at first I couldn't figure out what they were. LOL.....so that's why they peel grapes....