Its useful when you have uber structured data. Think when programming a programming language for example, the input is extremely structured but you need to handle so many things in so many structured ways.
for wishy washy data like you have in almost every other case it isn't useful, unless you want to solve those problems by making a programming language. But in most cases you already have languages there, like SQL for relational data etc, so you don't have to solve those problems.
for wishy washy data like you have in almost every other case it isn't useful, unless you want to solve those problems by making a programming language. But in most cases you already have languages there, like SQL for relational data etc, so you don't have to solve those problems.