This change has been expected for a while; if anything, it's only surprising that it took so long to be enacted. But Google Korea has, for better or for worse, started asking for age verification following any adult-themed inquiries.

Users must provide their name and the Korean version of a social security number in order to see unfiltered results for some searches. Otherwise, they're liable to see a list of results, but also a yellow information box and the number 19 - that's the age cutoff - circled in red.