Japan protects children online very differently to the UK. (Shout out to red rose for the heads up - it was interesting.) While the UK Online Safety Act is driving biometric age verification and platform-based ID checks, Japan has taken another route: mobile carrier filtering enabled by default for under-18s, combined with parental control and digital literacy.
There is no nationwide social media ban in Japan. Instead, age controls typically sit at the telecom/SIM registration layer rather than at individual platforms.
In this video I explain:
• Japan’s 2008 Youth Internet Environment framework
• How mobile carriers determine age at SIM registration
• Why filtering is enabled by default for minors
• The parental opt-out (waiver) mechanism
• The privacy trade-offs compared to UK-style age verification
This isn’t “no regulation” — it’s a different regulatory architecture.
Sources:
Nippon.com – Overview of Japan’s youth internet law and filtering model
www.nippon.com/en/in-depth/d01099/
Children and Families Agency (Japan) – Sixth Basic Plan outline (youth internet measures)
www.cfa.go.jp/assets/contents/node/basic_page/fiel…
NTT Docomo – “Request for Not Using Filtering Services” (waiver form example)
www.docomo.ne.jp/english/binary/pdf/support/proced…
The Japan Times – Commentary on social media regulation debate
www.japantimes.co.jp/commentary/2024/11/28/japan/s…
The Japan Times – Reporting on youth victims and social media concerns
www.japantimes.co.jp/news/2026/02/27/japan/crime-l…
If you’re following UK Online Safety Act developments, this comparison shows that “protecting children online” does not automatically require biometric ID checks across platforms — but every model comes with trade-offs.
Let me know in the comments: would you prefer telecom-level filtering, or platform-based age verificatio
If it relies on SIM cards that means it doesn’t work at all with regular computers or when the device connects over WiFi, right? Seems kinda useless.
Of course, all age verification checks on the Internet are useless regardless but this Japanese method seems extra useless.
Yes, but controls on local WiFi networks does nothing if they use a SIM to bypass it. So both are needed. And then that doesn’t take into account public networks, so controls are needed there. It’s a layered approach.
It’s carrier level. Your isp could do the same with off the shelf decryption appliances. Basically you decrypt the traffic and block traffic that isn’t decrypted.