Seems kind of silly that they have muskets and culverins but won't be civilized.![]()
Ethiopia had musketmen at that time as well IIRC, plus various free Indian states had rocket-esque weapons (which the British would eventually utilize in their warships) and they weren't "civilized" in Vicky II. Really that whole system is based on the "West"'s perspective, and many nations we'd consider civilized today weren't back then.
On the topic of AI Westernizing in EU3, I've only ever seen or heard of Oman doing so (with the exception of WolfSnakeCaffer's post above me).
EDIT: In D&T I've seen the Mayan state of Kan'ek westernize but that's in a mod, so I can't say it counts for much.
Its not really the wests perspective but histories perspective. Western nations were technologically superior and advanced more rapidly then non-western nations. The term westernization refers to when non-western nations embraced the ideologies that made the west great.
I've also seen, I think it was the Cherokee westernize, in EU3, but they were under Scottish rule for about 75-100 years before rebelling, so that probably is why. They weren't legitimate Cherokee, but Scottish who adopted the name of the former rulers of the province.