You've hit on a very good point. Wanting an idyllic family life for Illya and Napoleon is understandable, because we know what they go through in the service of humanity. An agent's job is unforgiving. The men do what they do because they believe in what UNCLE stands for, and because they refuse to give up hope for a better future. To make things even more challenging, they do it all in secret, without thought of reward or applause.

It's no wonder so many writers want them to have a rosy, idyllic home life, as a balance for what they endure in that other, shadowed world.