I’ve often seen this question posed as a defense of original sin:
Wouldn’t we all have sinned just as Adam did in the garden? Doesn’t that make it justified for God to impute Adam’s guilt to us?
On the surface, this sounds like a great argument, and it’s powerful — because we are so in tune with our own sin. It only takes me a moment to consider my sinful ways, and how easily I give in to sin, and I quickly respond in the affirmative: I absolutely would have sinned if I were there in the garden instead of Adam.
What we would have done in Adam’s place is irrelevant.