Simplify the following text for a Grade 6 native English-speaking person.
Original: This phenomenon has been termed a `` welfare society , '' and the term `` welfare system '' has been used to describe the range of welfare state and welfare society mixes that are found . A more extreme version of the modern welfare state is a system referred to as the Nordic model which is practiced in the Scandinavian countries .
Simplified: The most known welfare states are Nordic countries .