When we were little, Granny (who later became Great Granny Isobel) always bought a bottle of red and a bottle of white schloer for the children at Christmas. A few years later, Appletise was added to the options. They were very much once a year only very special Christmas treats though. My eldest niece, when she was about 3, named such fancy beverages "children's wine" and that's what they've been called ever since.
CriunklyAuntie maintained the tradition admirably this year, although she said the schloer choices are much more confusing these days, and provided a bottle of white (grape and elderflower) and a bottle of rosé ('fruity') and some appletise to go with our Christmas dinner-for-tea. Although none of the children present liked the "children's wine", all of the adults were drinking it, and it was really us it was bought for!