Any animal has the potential to hurt a child. I'd say a dog running around the house is far more likely to hurt a child then reptiles, in locked tanks, in a locked room.
There is also a higher chance of the children coming into contact with malignant virus/bacteria outside, from mammalian pets, school, outside, etc then animals that are kept clean, vet checked, and under lock and key.
I am highly prized for my meat. :eb: