Observations 2: Introductions

Indians, or maybe just Gujus, don't tend to say your name when introducing you to other people. I'm always Savaikaka's dikara's dikara, or Buluben's dikara, or something like that. The person nods knowingly, shakes my hand, and then later looks at me with some confusion. "What's your name?" "Sapan. And yours?" Yes, the introducer typically fails to mention that key thing. The only important information is how I am related or how I matter. Why are names so unimportant or forgettable during introductions?