It is true that museums are educational places for people in society. However, nowadays, people have to be charged the entry fee to enter many museums. From my perspective, although this phenomeno can cause negative effects, its still have more advantages.
To begin with, it is undeniable that the prices of tickets bring some detrimental impacts to the societies and museums. For society aspects, citizens are discouraged to visit museums and have fewer opportunities to access new information and knowedge about sciences, arts, histories, music and many other essential subjects, also because of tickets' prices, many poverty cannot afford such amount. From museum aspects, numbers of museums not only cannot attain their objectives which educate to public through visiting there but also the museums may suffer the risk of insufficient funding from customers therefore have to close down.
On the other hand, such a vital role does admission fee play in museums' financial facets. Museums will have money to operate their personal costs, equipments, water and electronic bills. Besides the aforementioned, museums will obtain the revenues to improve and upgrade their places, for example, to renew the exhibits, and information also the outdoor environments make them look good and the indoor floors are clean so as to attract more foreign tourists and local inhabitants.
In conclusion, despite the fact that the museum ticket sales have some demerits must not be ignored; however, I personally believe that museums should not be free for all as long as good management and efficient development still can bring large benefits for society. 
It is true that  
museums
 are educational places for  
people
 in  
society
.  
However
, nowadays,  
people
  have to
  be charged
 the entry fee to enter  
many
  museums
. From my perspective, although this  
phenomeno
 can cause  
negative
 effects, its  
still
 have more advantages.
To  
begin
 with, it is undeniable that the prices of tickets bring  
some
 detrimental impacts to the  
societies
 and  
museums
. For  
society
 aspects, citizens  
are discouraged
 to visit  
museums
 and have fewer opportunities to access new information and  
knowedge
 about sciences, arts, histories, music and  
many
 other essential subjects,  
also
  because
 of tickets' prices,  
many poverty
 cannot afford such amount. From  
museum
 aspects, numbers of  
museums
 not  
only
 cannot attain their objectives which educate to public through visiting there  
but
  also
 the  
museums
 may suffer the  
risk
 of insufficient funding from customers  
therefore
  have to
 close down. 
On the other hand
, such a vital role does admission fee play in museums' financial facets.  
Museums
 will have money to operate their personal costs, equipments, water and electronic bills.  
Besides
 the aforementioned,  
museums
 will obtain the revenues to  
improve
 and upgrade their places,  
for example
, to renew the exhibits, and information  
also
 the outdoor environments  
make
 them look  
good
 and the indoor floors are clean  
so as to
 attract more foreign tourists and local inhabitants. 
In conclusion
, despite the fact that the  
museum
 ticket sales have  
some
 demerits  
must
 not be  
ignored
;  
however
, I  
personally
 believe that  
museums
 should not be free for all as long as  
good
 management and efficient development  
still
 can bring large benefits for  
society
.