Tody, English is a world wide language.childrens must study English in shool,and it's usefull.Even you don't go abroad,in your hometown ,there're many foreiners you can see,if you don't know English,how do you communicate with them_
How to study English well? First,when you in shool,study with teacher .Second,you could listen English songs in your daily life or look for some English programes when you wacthing TV .these will help you level up your English.also you can wacth some English film ,it's very good for you.