Suitable armor for Adventurers? Is it ok for adventurers to show skin?

I see a lot of people complain about armour sets that leave portions of the character's skin exposed, and while it is a no brainer that more coverage equals more protection some people act like as soon as one portion of skin on the character is exposed the armor becomes useless. While it may not offer full protection surely some armor is still going to be better than no armor at all right? Sure it makes sense for a soldier to go into battle wearing full armor but the thing we need to remember is most of the characters that we play in fantasy RPGs are not rank and file soldiers, most of the time our characters are part of a small adventuring party undertaking special missions that require them to travel for long periods of time through dirty swamps and blistering hot deserts, climbing and sneaking through ruins and generally spending long periods of time in the same set of clothing, is it really that far fetched that some adventurers might sacrifice protection for comfort and mobility?

Now I have seen the videos of people doing backflips in plate and while I know the joints are designed to still offer a degree of flexibility it still is not the most comfortable thing to wear for long periods of time especially in unforgiving environments, plus in situations where you are trying to avoid detection by the enemy such as sneaking plate armour is a very poor choice. I think when designing armor for adventurers more does need to be taken into consideration than just pure protection, you also have to think about endurance, comfort, the climate and personal style, take Varric for instance

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I know a lot of people take issue his style of attire that has a plunging neckline prominently displaying his chest for everyone to see, but what type of character is Varric? He is not a frontline soldier, he is a writer and part time adventurer, whats more he is usually the type of character who would try to avoid combat and get by on his wit and charm, is it really that implausible that his choice of attire would emphasise comfort and style more so than pure protection and practicality?

Even if we take something like spartan armor that leaves quite a bit of the skin exposed, while the character may not be as protected as they could be they still have enough armour to deflect blows to vital parts of their anatomy while leaving a little open for the skin to breath and flexibility and movement.

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