The play is both realistic and didactic. How? Explain in details.

Certainly money adds a sense of realism. One of the factors that keeps the play pragmatic even when it veers close to contrivance and sentiment is the unavoidable importance of money. While some of the characters, like Marlow and Hardcastle, are mostly unconcerned with questions of money, there are several characters whose lives are largely defined by a lack of access to it. Moderation is a lesson that we can find. Throughout the play runs a conflict between the refined attitudes of town and the simple behaviors of the country. The importance of this theme is underscored by the fact that it is the crux of the opening disagreement between Hardcastle and his wife. Where country characters like Hardcastle see town manners as pretentious, town characters like Marlow see country manners as bumpkinish. The best course of action is proposed through Kate, who is praised by Marlow as having a "refined simplicity." Having lived in town, she is able to appreciate the values of both sides of life and can find happiness in appreciating the contradictions that exist between them.