also much as i hate to mention the solo movie when chewie introduced han to the wookie they found in the mines his first reaction was to pat hans head like you would when you meet a new dog
To further the analogy of Han is the Dog, According to various canon sources, a Standard Human in the Star Wars universe has a life expectancy of roughly 100-120 years. A Wookie has a life expectancy of around 400 years.
So, caring for Han for Han’s whole life is a commitment of less than a quarter of Chewie’s life. It’s like having a dog that lives to 20-22. A long term companion, but one you know you’re probably going to outlive.
