I generated 64 images with the prompt of "man" and, except for three unexpected nature scenes, every one of them was a fit white man with brown or black hair. It did produce some variety in age. One of them even had mostly white hair but still started with dark brown hair. Almost all had light brown eyes. Two had blue.
I generated 64 images with the prompt of "woman" and all of them were thin white women who appeared to be in their 20s. There was more hair and eye color variation than with the men images with 1 blonde and 4 red heads.
Can it be trained to produce more variety by default? Instead of defaulting to a fit white European appearance, vary skin tone, age, weight, and build?