So people can verify you are the person requesting the ID and not someone attempting to steal an identity or something along those lines.

You need proof

Why does your ID have to be valid so when it expires do you not exist any more ?

Crazy

Idk

Because you could claim to be anyone, any age, any sex etc. and there wouldnt be anything to prove who you actually are..

Doesnt make a lot sense does it. But then again, what does make sense anymore

Because no one knows who your are until some one identifies you.

Good question

Idk. I know it doesn't make any sense