Why C# allows initializing static class variables in non-static contructor? -

why c# allows initializing static class variables in non-static contructor? static variables should allowed initialized on static constructors. ideas?

 public class customer {     public string name;      public customer()     {         name = "c1";         console.writeline("creating customer " + name);     }  }  class program {     public static customer cust;      public program()     {         cust = new customer(); //why allowed i.e. initialize static variable in non-static constructor?     }      static void main(string[] args)     {         program program = new program();         program = new program();          console.read();     } } 

don't @ initializing, @ setting.

if initialized via static constructor or @ declaration, add readonly keyword.

e.g.

public readonly static customer cust;  //allowed static program() {     cust = new customer();  }  //not allowed public program() {     cust = new customer(); }