We worship our ancestors because we have ancestors worthy of worship.
Alexander began as a real person.
Aristotle began as a real person.
Charlemagne began as a real person.
Sigurd began as a real person.
Arthur began as a real person.
Washington began as a real person.
We have hundreds more like them.
AFAIK, There is no consensus on Odin other than he was indigenous to the western indo europeans, but it is increasingly likely that a real person (prophet, teacher, leader) was somehow integrated with the sky father (thor) and eventually succeeded him. So there is some clash or integration of the split between the east vedics, and the integration of at least the two traditions of the sky father and the leader. The romans could not understand except by analogy and have tainted the record it seems.