Could have been worse. He could have been from a culture in which saving someone’s life means that you become responsible for them for the rest of their life. Then you’d have had to rig up some kind of situation in which he saves your life so you become even.
Couldn't find anything on "blood debt" or "life debt", with the closest being a reddit article that references a Kung-Fu movie in 70s that popularises the idea
Yes, and the reasoning behind why it's considered such is also detailed in the link itself. I figured I'd leave that link as a way for folks to read into it and learn where the claim originated from.
That's not a "life-debt" as much as it's just regular insurance debt.
The same logic would apply in western countries, but the practice we have make it less likely you'd get away with murder so actually driving over someone to kill them on purpose after an accidental crash isn't quite as common as in China.
Nothing to do with "saved your life so now I'm now responsible for it".