Are both sentences OK? Or how would you say them?
Such stuff always have aroused my interest since I was a kid.
Such things always have grabbed my interest since I was a kid.

Question

Answer

The best of both is:
Such things always have grabbed my interest since I was a kid.

Suggestions:

Such things have always grasped my interest since my childhood
Since childhood things such as this have always held my interest
Ever since I was a child, such things have always attracted my interest

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