It has been   solution may lie in 
a 
recent concern about the number of increasing senior citizens in developed Remove the article
apply
countries
 . Use synonyms
This
 may increase the workload on Linking Words
governments
 in the Use synonyms
countries
 and the solution lies in allowing more easy  immigration from other Use synonyms
countries
 .
Use synonyms
Firstly
 , Linking Words
increased
 number of old aged Correct article usage
the increased
people
 adds to the burden on the government . Use synonyms
For instance
, bureaucrats need to pay for the medical expenses , Linking Words
pensions
 Correct word choice
and pensions
for
 the citizens . Change preposition
of
Additionally
 , Linking Words
less
 youngsters Change the quantifier
fewer
implies
 Change the verb form
imply
less
 taxes Change the quantifier
fewer
Correct your spelling
paid
payed
 to the government. So eventually it is quite hard for the ruling Correct your spelling
paid
people
 to effectively take care of their citizens . 
IdeallyUse synonyms
Add a comma
, 
governments
 allowing easy immigration policies for individuals to settle in Use synonyms
the
 respective Change the word
their
countries
 . Use synonyms
For example
 , students can be permitted to study , Linking Words
who
 Correct word choice
and
then
 may plan to be Linking Words
a 
permanent Correct article usage
apply
resident
 of that country . Fix the agreement mistake
residents
Governments
 can Use synonyms
also
 plan some nice strategies to attract Linking Words
people
 from other Use synonyms
countries
 .
So to conclude , Use synonyms
Use synonyms
Governments
 of developed Correct article usage
the Governments
countries
  can play an important role in  inviting Use synonyms
people
 and Use synonyms
make
 them feel Wrong verb form
making
like
 home . Change preposition
at
This
 will help them to not get loaded with Linking Words
extra
 burden of paying for the old homies .Add an article
the extra
an extra