Sentence examples for your line from inspiring English sources

"your line" is correct and usable in written English.
It can be used to refer to someone's area of expertise or responsibility, or to describe someone's personal boundaries or preferences. Here are some examples: - "I don't know much about fashion, that's more your line." - "As a manager, this decision falls within your line of expertise." - "I'm sorry, that's just not my line of work." - "I respect your opinion, but this crosses a line for me personally." - "I can't discuss this with you, it's not my place to comment on your family's issues. That's your line to handle."