A side-story: years ago I was having tea in Istambul with a turkish man and we were discussing on their culture around gold. I haven't been in India, but my distant observation is that both cultures work similarly (albeit India's focus is much higher). He then mentioned this habit that I found interesting. The man explained to me that, as everywhere in the world, is common for young men and women to ask their families for financial help in important moments such as buying a house or a car, or starting a business. What was original to me was the fact that, when such requests happen, discussions happen in grams of gold.

So a young turkish might walk up to her mother to ask for some help buying a car and directly say: "Could I borrow 10 grams from you?"

I'm guessing similar situations might take place there in India.