Why does brock keep his eyes closed?

Question

I mean we know his eyes open he looks like this:

SO why keep his eyes closed?

Comments

Where is that picture from?

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It's from the Kanto anime. Source: Reading a youtube comment talking about this being in the kanto anime.

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That’s actually Brock from the Diamond/Pearl anime. Look at his shirt. It’s the one he wears in that series.

Answer 1

It’s a trope called ‘Fox eyes’ and is often used in anime to show that a character is wise, experienced, and can be relied upon.