@submariner The “Wise Old Man” is one of the Jungian archetypes, so the appearance of an old man—often with magical powers—in art is often consciously intended to evoke that archetype. And as such, it has wide cross-cultural currency. Think of Obi Wan Kenobi and Yoda in Star Wars, Santiago in The Old Man and the Sea, Master Po in the old Kung Fu series. Tolkien was, I think, looking to tap that deeper archetypal meaning rather than expressing a particularly English partiality.
Could it be that the fondness for your old men comes from seeing in them something that resonates with this archetype? Maybe a sense that they’ve battled the forces of evil and prevailed; that they represent the best in you.
Here in the US, I think we’re just as enchanted by the Old Man archetype, but we have less inclination to see it in our actual elders.