Here's why:
* Tense: The sentence uses the past perfect tense ("had gone"). This tense is used to describe an action that happened before another action in the past.
* Context: Without more context, it's unclear what happened *after* you went to school.
Here are some ways to improve the sentence:
* Specify the timeframe: "You had gone to school that morning." or "You had gone to school before the accident."
* Use a different tense: "You went to school yesterday." or "You went to school earlier today."
* Add more information: "You had gone to school and were already home when I arrived."
By adding more information, you can make the sentence more clear and natural.