Primary Source: Ashoka

In what ways and for what reasons might this story from the Ashokavadana have appealed to various groups of early Buddhists?

The story might appeal to various groups of early Buddhist because it teaches a valuable lesson in a way that doesn't simply state it. The story captures people because of its unexpected and surprising lesson at the end of it. Other than the fact that it attracts people because it's a story, the story appealed because it shows that all castes were equal. King Ashoka, the one who praises himself as Beloved-of-the-Gods, has the respect to bow down to all Buddhist monks, regardless of their caste. It shows how to whom you are born to is not important, but it is important what you do with your life.