This is an easy example because one is a press release. It should be well known to everyone that press releases are advertising. They don't even claim to be factual or trustworthy. It's marketing. They're telling you outright that it's company propaganda. You can trust it if you want to, but you can't claim you were fooled. Further investigation is unnecessary. There's nothing to investigate since they've already told you up front it's a press release. The education system's responsibility is to let kids know what a press release is, and how it's different from journalism.

Not that all journalism is automatically trustworthy, no. With journalism you also have to take into account track record, and reputation, and so on.

If a young person doesn't know what Reuters is, they can use Wikipedia to find out what kind of entity Reuters is, their history, their reputation, etc.. That's how the responsibility of education is involved.