Things I've noticed coming up are conflicts about sharing meals out (different ideas about price of venue, how to share a check), gift giving, how to share food in a housemate situation, ideas about vacations and travel, and with my spouse different expectations about handling finances and different levels of security about food. With landlords I would hear disparaging remarks about my furniture and my car that clearly came from a class bias. I've also had upper-middle class friends want to give me money and not understanding why I refused. I can only imagine that was frustrating for them because they knew I needed funds for food at the time.
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