Why does null exist in .NET?

Question

Why can values be null in .NET? Is this superior to having a guarantee where everything would have a value and nothing call be null?

Anyone knows what each of these

Answer 1

I'm not familiar with alternatives either, but I don't see a difference between Object.Empty and null, other than null lets you know that something is wrong when your code tries to access the object, wheras Object.Empty allows processing to continue. Sometimes you want one behavior, and sometimes you want the other. Distinguishing null from Empty is a useful tool for that.