1) an acknolegement of a Like Family relationship. Bob and Charlie are like brothers so Charlie's son calls Bob "Uncle Bob" and Bob calls Charlie's mom "Auntie Alice".
2) a cultural phenomenon in wich the young show respect by calling all elders aunt or uncle.
This sounds like too different tropes
1) an acknolegement of a Like Family relationship. Bob and Charlie are like brothers so Charlie's son calls Bob "Uncle Bob" and Bob calls Charlie's mom "Auntie Alice".
2) a cultural phenomenon in wich the young show respect by calling all elders aunt or uncle.