Ok but NONE of the information you are sharing about breeders and keepers who have rooms full of reptiles has anything to do with this post where the OP is not only a new keeper but a teenager. None of it helps him at all. At best he can ignore it but at worst you'll confuse him into getting something he shouldn't be using
That is the beauty of the internet, at work.
This information being spread is not just limited to the OP. So when someone says 18x18x36 minium for babies, and everyone in the thread sees that, than they go on to say that. Not that it's bad advice to OP it isn't, but as a generalization it is.
Then they go on to spread that, and then more people parrot it, then they begin to see photos of breeders with caging they deem too small, (when it's not) and attack them. Others see the attack and then a bad rep spreads.
My point is, speaking in absolutes, especially when they are incorrect is not a good idea.
I am not disagreeing about this keeper needing to buy a larger cage, I am disagreeing with the way things were said. Don't sugar coat for OP.
Tell him, we can't and you can't trust you will be able to buy a bigger one. You need to start with an adult sizes cage. And actually, my suggestion would have been more of the more recent one.
"OP you seem young, you need to take some time to research, and get a summer job and save your money. When you have enough to care for a chameleon and buy this setup here is the list, we can assist more
/Thread

. "
If he persists refer back. Parrot that.
Glass is starting to become not evil again here and other places. After a long time. Glass in the form of a Viv, was never bad, as long as the sizing was right ect. However people shortened don't use Aquariums to glass, and then parroted it so long, that now "Get full screen or GTFO. When full screen really isn't even ideal for alot of people. That's what I am trying to prevent.
Like Beman just said, tell the OP, how it applies to them and doesn't. However that is what I am saying to do as well, tell the OP that cage will not work for him, and tell him why.