I disagree. The OP is not interested in any other reptile. Assuming the writer will take care of it for its fairly short lifespan, why not?Reason are extensive, and some listed below
You buy a healthy captive bred chameleon that is not really young and delicate,ALL chameleons are delicate - that is the nature of chameleons rather than starter reptiles, like beareded dragons, geckos, and snakes that is a forgiving species and doesn't have terribly finicky requirements, If cared for properly all chams have finicky requirements. Only people with limited time keeping chameleons can believe otherwiseyou buy the right lights and replace the bulbs every six months,Buy the correct lights and get one that is a dud - now will a new person know they are allowing the cham to develop MBD you buy the right enclosure (which you furnish with live plants). Again, what is the right enclosure? that depends on lots of factors, your location, your budget, where in your home the cham will be located, do you need to consider other pets You buy the right feeder insects that you feed up for a few days with really nutritious fresh food,The right feeder insects? really? how can you to say to a new person, buy the right feeders? Feeders are different the world over, and different chams will eat different things. Getting the right feeders and the right mix of feeders that your cham will eat, it not always easy to achieve you buy the right supplements Since very few of us use the same kinds and amounts of supplements, this is another thing that needs to be customized to the chameleon. I have 3 female quads who each handle supplements differently, that is not a clear cut, slam dunk, like people seem to think it is.and you make sure you are able to regulate the temps and humidity. First you have to learn what the temps and humidity are that will work for your cham, in your location, again this takes time and practice. If I say my chams need 90% humidity and it drops to 20% will the cham die in an hour, a day or not at all? How would you know if too much or too little humidity was harming this chameleon? Temps are also not just a temp. It is about creating locations of temps, your cham might want or need access to warmer temps than some others, and not what is "normal" for other chams - how will the new keeper reconize what the chameleon is trying to locate for a comfortable temp at different times of the day? You think long and hard about how to get water for your chameleon to drink Yes!! you do think long and hard - then your cham does not like what you think is working - how do you know and how long before you see it? before or after the cham is suffering from dehydrationand how not to have a stinking mess that ruins the floors or carpets.
None of this is rocket science, and all the information is available on this forum. You are so right, it is not rocket science, rocket science is hard and fast numbers, chameleons are live creatures. All the formulas in the world will not replace experience. The care of a chameleon IS more complicated than the care of a dragon or gecko. This is based on the number of variables. If you don't see those issues, I wish your chameleons the very best of luck - they will need it