Peoples' names in fiction and reality

Fiction writers create a world through their narrative sequences you follow a path through their speech and it little by little fills out a landscape. But when we read we're not necessarily so rational and certain ancillary, inconsequential, non-essential details unnaturally blow up into -making- the feel of the entire narrative.

For example, physical descriptions of roles in the narrative, like their manner of dress, or even things like facial expressions. These descriptions come across (in lazier fiction) as proxies for personality, counter to the advice of "show, don't tell", the author is trying to show their face, as a movie might, but they end up just telling you what the particular expression means.

And I find this annoying. Because when reading a narrative, I do try to make a mental picture of it all, but it's a but ream like and vague, not a crisp big screen photographic image.

Another distractor of the same kind is character names. "Dagny Taggert', 'Mr. Darcy', I have a hard time articulating what they mean to me (the author would say 'exactly, you read the book to find out') but that impression came from the pseudo morpho-phonological connotations of the name, before the book.

Then what about reality?. You meet someone and exchange names, 'Oh what a nice name', 'Hm you don't look like a "Frank"', 'I used to know a "Cecil" and you're just like him'. Surely there are cultural issues, exoticism, associations. But the point is, you judge the person based on their name. They didn't choose their name (well, for the most part; some choose to alter, augment, or change it entirely).

So, for the most part, if you think the name fits or doesn't, blame the parents.