The rights and duties inherent in a role are largely determined by one's society and culture. People who live within the same society and culture have by and large been socialized to understand in a similar way the sets of expectations attached to various roles. It is through such mutual expectations of the role players that reasonably smooth interaction between them is possible. Types of Statuses and roles Ascribed Status, Achieved Status, Assumed status etc. The process by which an individual changes status is called social mobility.
Mobility can be upward, downward, or horizontal.
In achieved you meet certain requirements in assumed you don't necessarily.