I have a problem. There are six of us. mum, dad, one older brother, me and two younger brothers. Youngest brother does not drink. The white wine is for mum but she is medically forbidden to drink much, so brother number 2 will have a bottle less half a glass to drink, too much. Dad, me and oldest brother will have two thirds a bottle of red. I think that is an ok amount for me at Christmas but too much for dad and my oldest brother. The sensible thing to do is not put out the Chablis but I do not want to deprive mum of her half glass of white. The more boozy amongst you may think this is ok but remember we will probably have a Champagne as an aperitif, Port afterwards and possibly a desert wine with pudding.