This is a very nicely written essay. Couple of suggestions I could think of ...
My view is that it is better for children learning a foreign language when they are in primary school instead of secondary school.
you should try to rephrase it and make it different from how it is stated in the question
less curriculums than
curriculum
s is a collective noun
less time spend on learning a foreign language
less time spen
tThere also have advantage of leaning second language in secondary school. those second school student always have better self-control ability than primary student. they maybe addiced by learning language then they really interested in it. however, those students are raw in the real world. this is because some course like history, physics and chemistry are more attractive than a goreign language.
Little more use of pronouns than needed ..