Most stories here on SH would benefit massively from having a minimum of 5-10 pages of world and character development/introduction before the inciting incident(s), and if it has multiple pov’s this will have to be repeated. Otherwise, like it does to some extent now, it will feel like most characters/worlds in most stories are unimportant, and different stories will feel like they use the same unresponsive/cliche characters/worlds just with different names in different plots.
The argument that then the pacing would be too slow, is moot and missing the point. You can have character and world interactions that are interesting. Of course a 10 page exposition dump is boring and a mistake, but that is not what I am saying. Take some time and show, through the interactions between the characters and the world that they inhabit, who and what those characters and the world is. And if you think that is too much of a risk tease some action in a prologue.
What are yours?
My hot take is kind of the opposite!
Writers should start writing what interests them, the writer, with an absolute minimum of onboarding to get there, unless the onboarding is an important part of it or fun-- someone's going to be at their best when writing about what they're interested in.
If that's worldbuilding, great! If that's character development, great! If it's a cool fight scene, great! Start from where your interest lies, and give readers enough of whatever else they might need to give them the context they need to understand what is going on, to be with you in that interest and the style of your story.
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To be fair, that's kinda optimizing around my own brain-- it's easier for me to start writing whatever I'm truly interested in. But also, I do think a lot of new writers follow the prescribed steps that a "story must go through" rather than finding what they want to write and basing their first chapter centered around that.
I often enjoy worldbuilding as a way to add texture and vermislitude to people's relationships and emotions and interactions, and reading worldbuilding when someone is into it can be super enjoyable... but if someone's writing something where they aren't that interested in worldbuilding, and they just wanna write a cool buddy action comedy which is all about hype fight scenes and one-liners and terrible puns and a developing relationship, I'd rather they get right to that as soon as possible then trudge with them through worldbuilding they aren't interested in.