> Inevitably, that has an effect on relationships and general life.

I'll make another observation: I don't think so. There's plenty of people who lack curiosity that led happy lives. I don't think anyone can prove a correlation between curiosity and success in life.

Heck, one could joke that there's a reason most proverbs say the opposite, in almost every language out there ("curiosity killed the cat" in English, "curious people die young", in my native Romanian).