Why use a VPN in South Korea?

Excuse me, but I'm curious about something. Could you explain why someone would want to use a VPN in South Korea? I've heard some rumors about internet restrictions and censorship, but I'm not entirely sure how a VPN could help with that. Could you elaborate on the benefits of using a VPN in that specific region, and maybe provide some examples of how it could be used to access content that might be blocked otherwise? I'm genuinely interested in understanding the practical applications of VPNs in South Korea.