I am trying hard, but failing hard as well
I have a transform named “firsttransform” and I am randomly assigning it a child object (from a list of 10 possibilities). What I want to do is be able to say something like "get the child of “firsttransform” , whatever it is, and move it to “secondtransform”. The movement bit is fine, but I can’t figure out how to say “get the child”.
No, because there can be any number of children. You can bypass the entire issue though: since you’re assigning the child object to “firsttransform”, that must mean you already have a reference to the child object. You can use that reference to move it to “secondtransform”.
No, that function has been deprecated.
If you need to access the children of a transform, use the method I showed. It is the first example script in the Transform documentation here