How awful for the friends with smaller parties. When both my kids were making the graduation rounds, each friend got the same amount whether the family decided to throw a huge catered party at a venue, a barbecue in the back yard or several families went together to throw a party.
All my children's friendships were valued equally and I would never show favoritism by giving Billy $100.00 because his parents could afford an expensive venue and give Bobby only $50.00 because he could only afford a backyard barbecue. Giving preferential treatment to a friend because they throw a bigger party is unfathomable to me and my circle of friends. Around here, you give a graduation gift based on the friendship, not how big and fancy the party is.
Kids talk amongst themselves and it would be horrible for a child to know that his friendship wasn't valued as much because he didn't have a fancy enough party.
Um, no - because by the time they're 18, they have a sense of how things are done here. I don't recall how I learned the "cover my plate" thing, maybe from people talking about it? It's just something I knew, and from these threads, other people in my area know. It's not written in some NYC Metro guidebook. Also, talking about how much someone gave you as a gift is pretty taboo here, again, an unwritten rule.