This essay was used by the Hong Kong Examination this year to ask the candidate to proofread. Do you think it is too difficult for English learners at the grade of high school to make his essay perfect?

I tried to make my first move on revising the first two sentences. I hope others non-native English speakers do the rest in order to make this essay becoming more idiomatic expression.

I’m a 31-year-old Dutch guy, was married and have a little son at age of three. I collected comic books since I was about 6 years old and stopped when I was about twenty-nine. Due to my great interest in computer, I stopped buying comic books and so at present my main hobby is computer.