Why you dont add sounds to the game , it will be better !!??/

I would like to ask from the developers if they can add some sounds to the game , for example when you score , or when a player is injured!
Crowd sounds , fans , maybe the manager could choose some sounds , could choose for example fans sound!
Some sounds from the refere !!
The game will be better with sounds!

I'd like to add sound but with it being optional so you an turn it off like most of the game on facebook :)