I suppose most people using LaTeX come from a scientific background. If you write math papers (for example) there is no good alternative to LaTeX. It has many issues but mostly it just works, so people are content with it.
If you want to write a novel something like Word is probably better. Or just use a typewriter if that's what you like.
If you want to write a novel something like Word is probably better. Or just use a typewriter if that's what you like.