I think both you and
@clumsyjellyfish do not seem to have a good understanding of the nature of a chameleon, especially a baby chameleon. They do not learn where or how to drink water. Maybe as an adult they might, but a baby doesn't seem to learn those things. The downside of allowing them to learn is that your chameleon dies before it learns.
Holding a chameleon will only stress it. It is thinking it is about to die and you are expecting it to drink water???? Chameleons are not scaled mammals. They have very limited problem solving abilities.
They are mainly an ambush predators--they sit in one spot and wait for prey to come close. My wild caughts tend to move only about their body length to hunt prey. Anything more than a body length out of their reach isn't hunted. If food doesn't come pretty close to them, they will starve. The same thing applies to water. In nature, water falls everywhere when it falls. Babies are less likely to figure out that water is in one particular spot in the enclosure.