system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do weathermen/women need to be meteorologists if they just read off of a teleprompter that someone else wrote?
gpt
They don't need to be. They can just be, as you say, people who read the report. 

Or they can be the people who also prepare the report and are able to comment on it with a degree of knowledge, and be able to discuss it with the other newscasters and therefore make their weather cast more interesting and authoritative. 

It's really up to individual stations/news reports.