As a product manager at the local transport authority, my parents both know that my job has something to do with public transport, but they don't seem to know w

As a product manager at the local transport authority, my parents both know that my job has something to do with public transport, but they don't seem to know what exactly my job entails. My mum seems to think I'm some sort of programmer. My background is in software engineering, so I can certainly code, but it's not something I regularly do in my day job. My dad hears the word "manager" in my job title and thinks my job is to give orders to other people. Leaving aside the fact that management in general isn't really about giving orders, it's difficult for me to explain in a way that he'll understand that just because my job title includes the word "manager" doesn't mean I'm the boss. Yes, I collaborate with colleagues, but I'm not involved in hiring and firing.