Agreed. I don't "do" gifts. The only weddings we've been invited to in the past 15 years have been nieces and nephews and there were 4 or 5 of those. Oh wait, we were invited to one for a neighbor, but I turned it down, didn't know the girl. I don't do weddings were I don't know the people. And I sent a card with a message, no money.
We are old and our friends don't have children (lots of single and gay couples) so we just are far out of the loop of young people going through these life marking events.