Why does he say "when you're 7 years old" while he's talking about his story? I thought he should say "I'm."
Great question! He uses "you're" to imply that all 7-year-olds do similar things, as though he is addressing everybody who is listening, saying they would have also done the same thing when they were 7. It means the same thing as saying "I did the only thing available any 7 years old would do".
Get more Native English Expressions >