What is the author's first main point and how could it be improved? 
What did the writer forgot to include in the introduction?

from this persuasive essay
Imagine a child as young as ten years old on the website Face book chatting with a grown man or grown woman. Should parents let their children as young as ten years old be on Face book? I think parents should not let their children or child be on Face book because on Face book there are a lot of things that are said and done that a child of that age should not be able to see.
If a parent approves of a child being on Face book it is very inappropriate. Because that child may tell a story about their age and someone much older may see it and think their telling the truth and start sending them messages and the child might not like it at all.
When a child that young is on a website like Face book they might get excited and go overboard. For example, the child might tell where they live, their address, and a lot more information that is not needed.
In conclusion I think parents should not let children under age get on Face book because many different things can happen.