Answer:
Send poorly behaved children to me and let them sit here. What am I?
I do not contain flesh feather or scales; yet I have fingers and thumbs.
I start new then become old. Start clean but be one dirty. I usually start big then become little.
What kind of tree can you carry in your hand?
Use me if you really want to see inside someone
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.