Why is it very important not to give out personal information on the Internet?

It is very important not to give out personal information on the internet because anyone can find where you live at or they can stalk you anywhere you go. And that's not a good feeling. When someone you don't know get your personal information, you never know what might happen so you really have to be careful. There are alot of sick people out there in the world and they dont care about your feelings so they can do anything to you if they so happen to find you.
There was a time where a young girl gave out her information and later on they found out that she was kidnapped by the same person she met on the internet by giving out her information to a stranger. So that's why it is very important not to give out your personal information on the internet.