Yeah that isn't reliable, you can ask mistral 7b instruct the same thing and it will often claim to be created by OpenAI, even if you prompt it otherwise.
Have you used any of the Mistral 7b models? They're really good, I think the 7b model just shows what they're capable of. They also dropped an 8x7b mixture of experts model yesterday, that should be very interesting to try.
This is so untrue. Most high schoolers run a Google search for their queries first. Most of the time just looking for a Wikipedia page. Occasionally smart ones will Google and append "reddit" to the end of their search when looking for opinions but a lot of highschoolers barely know what reddit is. YouTube would probably be next up and then maybe TikTok. But Google is still 100% the first place to go.
Source: I'm a highschool student and spend a lot of my time with other highschool students.