Korea's Under-16 Social Media Ban: What It Means for Digital Advertising

South Korean President Lee Jae-myung has directed the government to draft regulation restricting social media access for users under 16, citing overseas precedent — and Australia's world-first model, which bans under-16 social media accounts outright, is the reference point under review.

What Australia's under-16 social media ban looks like

Australia's law covers Facebook, Instagram, TikTok, and YouTube, requiring platforms to verify age and block underage accounts, with fines of up to AUD 54.6 million (roughly ₩50 billion) for non-compliance. Korean regulators are reportedly considering a staged approach, mindful of the earlier failure of Korea's game "shutdown law." One option under discussion: restrict sign-ups for under-14s outright, while phasing in limits on recommendation algorithms and infinite scroll for ages 14–19.

Winners and losers among platforms

The impact splits sharply by platform. Global platforms — Instagram, TikTok, YouTube — stand to lose teen users, engagement time, and directly tied ad revenue. Naver and Kakao face a different exposure: limited direct revenue loss, but new compliance costs to build age-verification and guardian-consent systems across KakaoTalk Open Chat/Story and Naver Band.

Who benefits from the new compliance demand

The regulation also creates new demand for age-estimation and digital identity verification. Companies positioned to benefit include Aton (mobile authentication via Korea's three telecom carriers), Raonsecure (decentralized identity/DID), Dream Security (identity verification solutions), and Alchera (AI facial recognition).

Implications for marketers

This is more than a policy story — it reshapes the structure of digital advertising itself. Brands that have leaned heavily on Instagram, TikTok, and YouTube to reach teen audiences should plan now for a narrower future path to that demographic. Campaigns targeting Gen Z and Gen Alpha likely need to be redesigned around platform diversification and organic, community-first strategies.

At the same time, age verification and identity checks are likely to become a standard part of the advertising and onboarding funnel. That will affect targeting precision and how personal data is handled, so marketers should start assessing now how verification steps introduce friction into user experience (conversion) and data collection. This is a risk, but it's also an opening — new partnership and ad-product opportunities in the identity-verification and "age-tech" space.

For help rethinking your channel mix ahead of regulatory shifts like this, Best Partner's services can support your strategy, or get in touch to talk through your specific audience.