It's widely known that Vikings would frequently raid other nearby peoples. However, I've never heard it discussed why they did and how it became such a large part of their culture. So, why?
there have been a few similar questions recently; see here for previous responses
Why did the Vikings raid Kells?
Why were Scandinavia and the Steppes so often producing major and disruptive tribes?
What made the Norse/Scandinavians more willing to take the long and dangerous sea voyages they took?