Images including people are severely culturally out of touch

It's incredibly biased and in a very VERY wrong way. I hail from Vancouver BC, and "obviously" most landscape images should include 'rocky' mountains with coniferous forests.

There are other issues, of course, and with all stable diffusion bias is problematic.

That said, when I try the prompt

peasant running in a medieval landscape and a majestic city in the background, sun is setting, golden hour

and use default settings this is what Firefly gives me:

Compare with Krita's AI plugin and Cinematic XL diffusion:

(I did have to introduce "woman" as a keyword to create the woman peasant: bias!)

Firefly's result is somewhat laughable. The straw hats make no sense, nor do the modern running shoes 😉 The runners look pasted into the image in Firefly's case. And what's with their white blouses? How do those fit in a medieval setting?

Compared, XL is quite convincing, however. Also biased, but quite usable. Something out of a European film set in a medieval place.

Even with muted colours Firefly can't resist adding in ridiculous aspects:

Suddenly modern apartment buildings pop up in the background as well. Runners are still wearing Nikes...

And mostly the results remain unconvincing and plain odd looking. Why is everyone running away from the camera?

Creating a digital painting using the same prompt results in these (FF on the left, XL diffusion in Krita on the right):

Still ways to go. I am aware I am comparing apples with pears, but still...

Free open source seems leagues ahead and is improving rapidly (unfortunately disregarding artists' work, however).

I'm always getting Ireland-themed results for some reason, my people have green shirts and hats with club even though I don't write that kind of prompt, and I can't figure out why.

Thanks very much for your reply - I had seen other similar threads, but not that one.

I understand that you can change the prompt to be more specific (this is not a great prompt anyway), but what I'm arguing here is that the default result is culturally inappropriate. While this example is obviously a long way off, more subtle examples may be equally incorrect but not as obviously so, and there lies a problem.

This issue has been discussed in this thread:

Union Jack appearing in images 

The decision Adobe made is to try to make results appear more culturally relevant based on where the user is located. There are advantages and disadvantages of doing that, and in some cases, the results can be a little ridiculous as you observed. You can change your prompts to be more descriptive to override that region/culture behaviour.