In the globalizing world, studying a foreign language in general and English in particular play an important role to find a high salary job in society.
Don't narrow down the scope of your topic. It speaks of a foreign language and nothing specifically about English. You can have English your examples, however,in the introduction you need to introduce the topic it is real sense.
Firstly, It is said that children's mind are likely the blank page.
.... thre are some grammar issues;First, it is said that children's mind is like a blank page.
Firstly, It is said that children's mind are likely the blank page. It is easier for teacher to teach them language when they are young
My view is slightly different - Children are free from responsibilities and other social bareers to a great extent compared to adults. This enables them to concentrate better in learning a foreign language.