Idea 2: Old people are often financially stable people ---> They are more likely to do volunteer activities to help people in difficult circumstances, such as providing food and accommodation for the homeless --->..........   the elderly can also bring joy to themselves by doing such volunteer activities.

financially capable  of

(A) The elderly frequently possess a great knowledge and extensive views which they gain from real life/ (nhiều năm làm việc) .

(B) The young generation could learn a lot from those experiences

(C) This help to enrich their life.

Idea 02

(A) The aging population is increasing rapidly in developed countries

(B) Government needs to improve the health system

(C) hospitals are more likely to recruit numerous human resources to take care of the elderly

-> Provide a great income for the economy

=> The aging population is increasing rapidly in developed countries. So, the government needs to improve the health system and hospitals are more likely to recruit numerous human resources to take care of the elderly people. As a result, it could attract many medical laborers, which provides a great income for people and the economy.

Idea 01

(A) The elderly people frequently possess a great deal of knowledge and extensive views which they gained from many years of work.

(B) The young generation could widen their understanding of those experiences

(C) This helps to enrich their real-life skills and also helps them to acquire high productivity at work.

Idea 02

(A) The aging population is increasing rapidly in developed countries

(B) Government needs to improve the health system

(C) hospitals have to recruit a great deal of medical workers, which provides more job opportunities. 
Idea 3: 

1. ECONOMY

- A great deal of valuable knowledge in terms of economy accumulated through numerous hard-working years (A)-> From an economic perspective / point of view, an aging population would mean that experience PASSED ONTO [E13] young generations (B) -> boost productivity and eventually ECONOMIC GROWTH [E…] (C). 

(would mean that S V O/ N-phr)

Be Synonymous with 

(người già hẳn  dùng the elderly/ old people, không dùng older people vì chỉ những người 40 – 50 tuổi)

2. CULTURE

- Directly witnessed historic upheavals  and events (A)-> From a cultural point of view, old people COULD BE CONSIDERED living museums which could provide young individuals with a deeper insight into the past  (B) -> Maintain cultural identity (C)

- For example, …