Actually, English is not my native language, I started learning it in primary school in fifth grade (at around ten).

Unfortunately, teachers do teach that and there was a test for the various group names, like a school of fish, a pod of whales, a parliament of owls, etc. And yes, the murder of crows was included. That was in secondary school, though, so admittedly at a higher level of education but it is taught and tested against.