I hate nise of children

I hate noise of children.
For example, I can not put up with screech of child in the train. sometime, I see children making merry and screeching in the public. people around them feel uncomfortable. But, recently parents who do not pay attention their children increase.I wonder why their parents do not scold their children. I think they should upbraid their sons and daughters when they give people around them annoyance.
I realy do not like screech of children, but someday I will marry someone and have a child. I want to be mother who can discipline my child. Before then, ofcourse I should be well mannered person.