I'm not very sure but these are my findings . please get it verified again by others If Im wrong.
healthcare demands will increase by rising the number of the elderly
health care demands will increase with the rising number of elderly people ...
short of the employees due to the ageing society
shortage of employees...
difficulties for their off-springs to accomplish
Here Their off-springs refers to whom excatly is unknown. It could refer to the elderly persons off-springs , or the existing people's offsprings . need to be clearer for the reader
You could say this like "difficulties for
the off-springs to accomplish
average of age
average age
First, the advance in medical care enables the senior citizens
Firstly, the advancement in medical care....#
precautions to prevent from diseases such as vaccine
is Vaccine a disease?.. I think it should be ~precautions to prevent people from catching diseases by vaccinating themselves etc ...
Too many grammatical errors .
Overall You need to rephrase a lot of sentences. You are addressing the problem of elderly people and not talking about the measures to reduce the impact of aging population.
Also you need to describe the primary problem of increased life expectancy, like the problem with space to live and the population impact on the whole world and then how to solve these problems.
what you have stated is completely different from the topic mentioned
best,
Sharman