Why do most guys like wearing white shirts?

okay, so... I'm a guy, and I don't really know what 'normal' is, cause I don't follow the trends, but

1. Why do most guys like wearing white shirts?

2. what's up with the physique revealing pants

3. white shoes?

4. okay so I really wanna know the answer to this one,

which one is better? V-neck shirts or O-neck shirts?
Why do most guys like wearing white shirts?
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