Your family threw an extravagant birthday for you, your father took out a huge loan to pay for it and now the families in debt. (work with your DM to determine details)
Your people are developing and improving themselves technologically, socially and morally. Usually, this culture is on its way up from Barbarism, rulers may favor some type of popular representation, and the people have much faith for the future.
Comfortable: This is the middle class of any Culture, regardless of the average wealth of its citizens. These folk usually live in clean, nicely apportioned homes or apartments, often in better neighborhoods. They eat regularly and occasionally very well.