Point of ambiguity: when Luke discussed Ben Solo's past with Rey, he remarked that "Han was Han" in response to the idea of Luke training Ben in the ways of the Jedi.
I'm not exactly clear on what Han's opinion was on that: did he enthusiastically embrace the idea? Reluctantly agree with reservations? Vehemently object to it? Not give a damn either way?
Buried Alien (The Fastest Post Alive!)