Its kind of abstract but they definitely shouldn't push their king's pawns, if the f, g, h pawns are opposite to their king though it will take way too long to get passed your rank of pawns for it to even matter if they open their king pawns when you control the center they are probably dead, at higher levels it entails death. The center is more valuable than a flank attack for this reason, and its why flank attacks usually only consist of one lone h or a pawn because its too slow, if you have the center you have access to the whole board theoretically
Why is nessecary to control the center in chess?
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Oct 9, 2022
0
#3
Because everything goes through the center. You can relocate your pieces through the center faster and a piece standing in the center can participate in play on both sides of the board.
See the article '13 Types of Chess Openings' here...
Chess Openings Resources for Beginners and Beyond...
https://www.chess.com/blog/RussBell/openings-resources-for-beginners-and-beyond
related...
https://en.wikipedia.org/wiki/Flank_opening
https://en.wikipedia.org/wiki/Hypermodernism_(chess)
It's as nameofnames said: a flank attack is slower. It's also easier to defend.
The center is much stronger because being at the heart of the board gives your pieces more mobility from which they can move in any direction. You will positionally control many more squares. And whoever has better coordination can in the end provide that squeeze necessary to establish an attack on the king.
Also passed center pawns are much stronger than flank pawns because they can form a cluster that's much better reinforced by the pieces. For example, if you push the h-pawn, it's usually not so easy to get a rook to h1, a bishop as assist piece, and a knight as potential outpost, than it is to get such a formation in the center.
So always make sure you control or at least hold the center.
Oct 9, 2022
0
#6
Mostly due to piece mobility to any part of the board and being able to contest more key squares in the center. @zone_chess says it well with their first paragraph especially 
@1
"But I couldn't understand the purpose of the Center"
++ All pieces are more active when they stand in the center. They can attack and defend.
"what if the opponent just do a few center moves and then push F, G, H pawns and start a massive Kingside's Attack" ++ If you control the center, then his pawn attack is bound to fail. You can defend against his attack and counterattack on his king with your central pieces.
Via the center you can move pieces more quickly, while he has to go around the center.
The center is the shortest point to all corners of the board at the same time.
Oct 11, 2022
0
#9
I can't yet find exactly what I was looking for but this is close.
I'm looking for another one that shows how many squares a piece controls depending upon where it is on the board and it is of course a greater number of squares when you're in the center and far less on the edges. For instance a knight controls eight squares Max but only controls 8 squares if it is in the center of the board from A3 to F6. Outside that area it controls less. In the corners A1, A8, H1 and H8 it only controls two squares. From A2 it controls three squares, from A3 it controls four. On B2 it controls four squares, on B3 it controls six.
Oct 11, 2022
0
#10
Because you wouldn't start VietnameseProductions in Hoi An, you'd start them in Hanoi.
Oct 11, 2022
0
#11
Found the one for Knights, but can't seem to find the others. But this demonstrates it pretty well.
Rooks are the only piece that control the same number of squares regardless of their position. Everything else controls more in the center.
This image is linked from this post on Reddit
https://www.reddit.com/r/chess/comments/nij28s/knight_moves_a_simple_table_i_made_showing_the/
I'm a fellow 800elo(rapid) player, I've been play chess for a time since. But I couldn't understand the purpose of the Center
Control the center said it main purpose was too stop opponent's pieces from access the center
but what if the opponent just do a few center moves and then push F, G, H pawns and start a massive Kingside's Attack
Please pardon me from any grammatical mistakes, English is not my first language, nor my secondary language