Define and distinguish between informal, quasi and formal social support. Provide an example of each. How do these interface?

1.Define and distinguish between informal, quasi and formal social support. Provide an example of each. How do these interface? 2.What are advantages and disadvantages of informal social support for older adults. For the caregivers. Provide specific examples of the effect on the well-being family members who are care givers 3. Given the increasing older adult population and increased life expectancy, how will the interface of the different types of social support change?