… no one who drinks the old wine seems to want the new wine. ‘The old is just fine,’ they say.” Jesus in Luke 5:39 NLT
I’m not much of a wine drinker, and will admit to being a lousy judge of quality. But I do know that you drink what the host is pouring. To politely refuse what is provided is reasonably understandable. But to insist on being served a different blend – one that you prefer, and definitely aged longer – would be incredibly rude.