My worst memories growing up are when I had my braces on. My mouth was always hurting. 
i know they are a device to align and straighten teeth and help position them, why did it hurt so much?
My teeth were messed up. I looked like some sort of animal. I guess it was because the braces were pulling my teeth together. I wonder how many people have to ware them?
People dont have to, its their choice, everybody wants to be beautiful  according to scholars and historians, braces date back to ancient times.
I was all ready beautiful it just helped. I didn't realize they have been around so long. 
They are often used to correct cross bites, i think i have cross bites, but its not making any problems for now 
Dental surgery seems so much easier. Dental Braces are very expensive. 
Its easier, but can lead to complications, like any other surgery, the tEtruscans buried their dead with dental appliances, crazy right?
Wow, thats very strange I wonder why? Did they need strait teeth in the next life?
Yes, they were found with metal bands wrapped around their teeth, probably braces :D