Why no acess to other structs in classes?

[Mariano]

== Quote from Karen Lanrap (karen at digitaldaemon.com)'s article
> class C
> {
>     struct S
>     {
>         uint data;
>     }
>     S s;
>     struct T
>     {
>         uint f()
>         {
>             return s.data;
>             // this for s needs to be type C not type T *
>         }
>     }
> }
> void main(){}

This seams like really bad practice. A function inside a struct returning something
from outside itself?

M.