It’s doubtful that a beginner would notice any difference, but the original Loon 100 was a little different from typical 10 foot kayaks. The Loon 100 was 28 inches wide, so two or three inches narrower than most 10 footers and the hull shape is a simple shallow vee flattening out in the middle - similar to a tiny canoe. I think the load capacity was 225 lbs, so a little lower than most. It’s the first kayak I ever bought and I still have it. Because of its lower width and hull shape, I find that it tracks and glides better than other 10 footers I’ve been in.
I don’t know of a current model that’s similar, but that really may not be a factor for your duaghter.