You mentioned several reptiles I would not get for sons.
We have had a lot.
We have had a rainbow boa- died after vet sitting when we went on vacation. They gave it pnuemonia. Had tegu- got out of enclosure in mid of night and burnt self on heater. Bearded dragon-died of cancer after 6 years. Maybe corn snake eggs-died because house sitter did not rotatate them in incubator.

Now we are down to 1 lizard and 5 snakes