Everyone should be familiar with the primary reason sunglasses are worn. Sunglasses protect your eyes from the sun, warding off long term effects of the sun's damage.
You are probably fairly familiar with the basic science behind sunglasses. They filter out harmful light rays and protect your eyes from intense light.
As with virtually anything else in life, there is a time an place for sunglasses. Most would agree that the benefits of protective eyewear are tried and true.
Ultimately, everyone should care about their vision and want to protect it. However, there are certain groups of individuals that should especially wear sunglasses.