Hello @enrico,
nothing wrong with the implementation!
It’s just the wording “parent / child” that confuses the hierarchy in my opinion.
In the real world, the parents build a house and when they die, the child inherits the parent’s property.
Btw, I haven’t found the wording “parent / child” in the references You have given, except for zend-rbac. “Senior / junior” is used in one reference.
Nevertheless, i am okay with the implementation and wording, just don’t understand it.
Let’s close the discussion here.
Cheers,
Lowtower.