While the subjective assessment that quote handling in yaml is worse than bash is understandable, it is really just two of many many cases where quotes complicate things. And for a pretty good reason. They are used to isolate strings in many languages, even prose. They, therefore, always get special handling in lexical analysis. Understanding which languages use single quotes, double quotes, backticks, heredocs, etc and when to use them is really just part of the game or the struggle I guess.