Answer:
I am lighter than air, but a hundred people cannot lift me. Careful, I am fragile. What am I?
I am rarely touched but often held and if you are smart you'll use me well.
Use me to reward good behavior.
Fatherless and Motherless, born without sin. Roared when it entered the world, And never spoke again.
Send poorly behaved children to me and let them sit here.
The answer I give is yes, but what I mean is no. What was the question?