The Past Perfect Tense and the Past Tense

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Oct 6, 2017 11:15
Grammar books say that in a sentence where an action happened in advance of another, the former should be in the past perfect tense. Common structures are as follows:

1. He had finished his homework before his parents came home.
2. He hadn't started doing his homework until his parents came home.

However, while watching movies and reading online posts, I noticed that many (nearly all) native speakers tend to use the simple past tense instead of the past perfect tense.

For example, he didn't start doing his homework until his parents came home.

I once tried to do it here the same way but ended up getting corrected, but I still notice structures like this everywhere. The past perfect tense makes more sense to me in this situation, but since many native speakers use the simple past tense, can I just follow suit? What do you think?

[Revised]
过去完成时和过去式

语法书上说,在一个句子里面,如果一个动作发生在另一个动作之前,前面那个动作要用过去完成时。比如以下两个结构:

1. He had finished his homework before his parents came home.
2. He hadn't started doing his homework until his parents came home.

但是,在看电影和阅读网络论坛时,我发现母语者几乎清一色用过去式,不用过去完成时。比如, he didn't start doing his homework until his parents came home.

我曾经试着在这里不用过去完成时,但都被修改了过来。虽然对我而言,过去完成时看起来更规范,但是,如果很多母语者都只用过去式,我可以直接效仿吗?

期待您的观点。