Since we don't have much information about this specific 'blackkklansman old man story', it's difficult to say who the old man is. He could be a fictional character created to represent the older generation's experience with the KKK - related events in a story based on 'BlacKkKlansman'.
In 'the old man at the bridge story', the old man is an ordinary person whose life has been upended by war. He seems to be a bit forlorn and lost. He has his own little world back home with his animals, but now that world has been destroyed by the war. He is at the bridge, a sort of liminal space between the past and an uncertain future. He represents the countless individuals who are displaced and left in a state of confusion and despair during times of war.
There's not enough detail to know for sure who the old man is. He could be a variety of things. He might be a war veteran who has some skills or knowledge that comes into play in the story. Or perhaps he's an old family friend of one of the characters, and his presence in the story is to provide a different perspective or a connection to a past event that is related to the events in 'Equalizer 2'.
He is a character who embodies the despair and displacement brought about by war. He's an old man who has been through a lot. Maybe he had a simple life before the war, but now all he has left is the bridge where he sits. He doesn't seem to have any strength or motivation to move forward, and his presence at the bridge is like a statement about the state of so many people during war.
The story doesn't give a specific identity to the old man. He might represent any individual who has the determination and vision to make a difference in the environment through the simple act of planting trees. So, he could be seen as a symbol of environmental stewards in general.
The 'old man' could be a grandfather figure, someone who has lived a long life and has a lot of stories to tell. He might be sitting by the fireplace, sharing his tales with his grandchildren.
There's not enough information to determine the old man in the story precisely. He could be a kind grandfather - like character in a family - centered story, or perhaps a hermit in a story set in a mystical forest, who holds the secrets of the forest.
Since we don't have more information, he could be a local hero in his town, known for his acts of kindness or his long - standing contributions to the community. Or he could be a traveler who has visited many places and is sharing his adventures on YouTube.