These days 
moreChange preposition
show examples
  countries, 
oldCorrect article usage
show examples
    is 
moreCorrect word choice
show examples
  than the younger and children populations. Some 
 say an ageing 
 problemFix the agreement mistake
show examples
  for governments.Others believe there are 
gainFix the agreement mistake
show examples
  if 
 has more 
 . I will discuss 
advantagesCorrect article usage
show examples
  outweigh the disadvantages and I give my opinion .
On the one hand,Older 
 are increasing.
 numberChange the article
show examples
  of advantages are 
creatingWrong verb form
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  in 
the Correct article usage
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 . 
, 
 can get 
 and experience from old 
. Because older 
 are mature 
humanFix the agreement mistake
show examples
 . They have 
lotChange the article
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  of 
 and knowledge about 
, work areas and about life. 
. adult 
peopleChange noun form
show examples
  advicesChange the wording
advice
pieces of advice
bits of advice
show examples
  areCorrect subject-verb agreement
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  very important for 
youngersCorrect your spelling
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  and Correct word choice
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 children 
asCorrect word choice
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  governmentCorrect article usage
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  can get help 
 . 
, 
  take 
rightCorrect article usage
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  decisions always. 
, these days professors, 
scientistFix the agreement mistake
show examples
  and specialist doctors that ,high 
levelCorrect your spelling
show examples
  of Change preposition
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  have 
   government and private sectors are nominating them for higher 
  knowledge and experience.
, some disadvantages are increasing 
being Unnecessary verb
show examples
 improving older 
. 
, 
Correct article usage
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 should 
spentChange the verb form
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  more money 
forChange preposition
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    because 
governmentCorrect article usage
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  Should give 
 allowances 
forChange preposition
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  older 
.
, money is 
wastingWrong verb form
show examples
 . Another thing, 
populationAdd an article
show examples
  is increasing.Spaces are decreasing. Nowadays younger adults leave 
in Change preposition
show examples
 their jobs because 
lookafteringVerb problem
show examples
  for older 
.It is an advantage in a 
.
, 
unemploymentsFix the agreement mistake
show examples
  areCorrect subject-verb agreement
show examples
  increasing. 
, 
 want to spend more money 
forChange preposition
show examples
   peopleChange noun form
show examples
  medicine, food and other needs
In Conclusion, I believe that
,Remove the comma
show examples
  older 
 are valuable 
 in our world. They have experience and knowledge mostly. 
, 
Correct article usage
show examples
 and 
 should protect our 
 . 
. I think that
,Remove the comma
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  the advantages of having an ageing 
PopulationFix capitalization
show examples
  outweigh the disadvantages.