There are debates that some saints, including Saint Christopher, were not real. This has become apparent as time goes on, and the Catholic demoted his position in the 60's. Some say he was made up as a metaphor for the weight one has to carry from being a Christian. And this isn't just the idea of him being a wolf-headed man, but the guy in general.
>It is disputed whether Christopher existed, and if so whether the name applied to a specific person or was a general title meaning "Christ-bearer" which was applied to several different real or legendary people. He may be the same figure as Saint Menas.
https://en.wikipedia.org/wiki/Saint_Christopher
Is Saint Christopher a real man? A misunderstanding? Why would there be Saints like Christopher if people are aware they didn't exist?