Помогите дать ответ. Why are some people too much addicted to computers?

Вопрос школьника по предмету Английский язык

Помогите дать ответ.
Why are some people too much addicted to computers?

Ответ учителя по предмету Английский язык

People do not have self control and can’t restrict themselves from playing computer games or surfing the Internet. May be these people do not have hobbies and their free time they spent surfing the Internet.