Best pet amphibian for small children?

[Iratus ranunculus]

My 6-year old brother is fascinated by my Budgett's frog, so I decided it would be cool to buy him a frog (or possibly a salamander) for him to keep. So what is the best pet amphibian for small children? I would help him with caring for the animal, of course.

For a kid, you want something idiot resistant. American or African Bullfrogs, Firebelly Toads, Tiger Salamanders, Pacmans, or certain hylids like Green Treefrogs, or Cuban Treefrogs. Bufonids are excellent choices as well. Might I recommend a Cane Toad (if legal in your area), or something in the Anaxyrus (formerly Bufo) americanus complex?

[Musicpanda]

For a kid, you want something idiot resistant. American or African Bullfrogs, Firebelly Toads, Tiger Salamanders, Pacmans, or certain hylids like Green Treefrogs, or Cuban Treefrogs. Bufonids are excellent choices as well. Might I recommend a Cane Toad (if legal in your area), or something in the Anaxyrus (formerly Bufo) americanus complex?

Wouldn't call pacmans idiot resistant, the kid might lose a finger if the frog mistakes her/his small fingers for food, and they don't really like being handled that much. For all the others I have no idea, I only own one Pacman