World-Building Turn-Offs

[awa]

As for personal guns, it's surprising they developed in the real world, let alone a fantasy one. While cannon were useful in sieges, early guns were slower, less accurate, no easier to use and more temperamental than the crossbows and longbows they were supporting. The only real advantage was that they made a big scarey bang that could theoretically scare horses. Eventually they became cheaper and easier to use as anti armor weapons, but even then they weren't much better than a 'poor man's longbow' for centuries.

guns were much cheaper to produce and easier to learn then long bows and you are vastly underestimating the psychological effect of guns. Scare horses nothing scare people. Think about it your some peasant conscript all the bad guys line up in a row and then suddenly boom a a thunderous roar like nothing you have every seen before a vast cloud of foul smelling smoke and a bunch of your buddies just drop dead.

the psychological effect of massed fire was far more effective then it's raw killing potential.

edit
something that bugs me is when a setting does not explore how their magic or different species would affect their setting. for example dnd setting where people make use midevil tactics despite having wizards and clerics running around.

Or even worse a setting where only one person has ever done any kind of inovation