Clearly it’s unrealistic financially. I guess I was wondering if it’s also unrealistic because she has no right to be doing it in the first place. The author shows a number of times that it’s financially unrealistic (in the text you quote) but doesn’t seem to poke fun at her for the presumption of making plans for a house she doesn’t own. So I wondered if that’s so obviously silly it doesn’t need to be pointed out or if it would have been seen differently at the time.