My 2 year old is the same way. Anytime I have one of mine out her eyes light up. Still not quite comfortable letting her touch anything just yet, she's still learning what the word "gentle" means, but we'll get there. I'm a big supporter of teaching younger kids about reptiles both captive and wild. Here in Georgia we have an abundance of wildlife so learning how to be safe and respectful of their space is an important lesson for kids.
Good on you for sharing the hobby and getting someone else interested!