Just had the office birthday cake presented to me. I waited before I started eating, as I do at all of these things. This time, it was noticed. "Why aren't you eating?" "Because I'm waiting for everyone to be served."
Apparently, this is not the custom in Italian homes.
I always thought that it was simply part of Manners 101, although a custom increasingly rare.
Oh well. I stick to the old ways in a lot of things. 'Nice manners are the secret keys to the universe', as Amy Poehler says.