I went to a boyfriend's parents one Xmas and they served cold turkey. All the usual trimmings were cooked fresh but the turkey was done Xmas eve and left to go cold.
Apparently that was normal, and I learned how normal when on boxing day we went to his grandmothers for another cold turkey and hot veg.
One of my friends hated BBQs which I thought was odd as he loves burgers and sausages and being out on a nice day.
Then I went to a BBQ at his mother's.
The BBQ is lit and all meat is put on at once, no waiting for the coals to go white.
The meat is then taken and put in the oven on 1000 degrees while a table is set with a cloth, plates, glasses, knives and forks and salt and pepper pots.
A large undressed salad is put on the table and finally the meat comes out of the oven, well I think it's meat, it was black and vaguely resembled what had been on the BBQ.
Everyone sits at the table and eats and then the table is cleared.
If you come to a BBQ at mine the coals will be lit before you get here, a few bits of meat are put on the BBQ and there is salad, bread, sauces. Once something is cooked it is put on the cooler bit of the BBQ and you help yourself.
You are expected to sit around with a glass of wine / beer and have fun with occasional shouts of, "there's some burgers/sausages/chicken ready"