Some videos don't violate our policies, but may not be appropriate for all audiences. In these case,  our review team may place an age restriction on the video when we're notified of the content.

Age-restricted videos are not visible to users who are logged out, are under 18 years of age, or have Restricted Mode enabled.

When evaluating whether content is appropriate for all ages, here are some of the things we consider:

• Vulgar language
• Violence and disturbing imagery
• Nudity and sexually suggestive content
• Portrayal of harmful or dangerous activities

To learn more about what you can do to avoid having your video age-restricted, visit our Policy Center. If you believe your video was age-restricted in error, you can appeal the age restriction on your video.

If you're looking to monetize your video, make sure to review our policies since age-restricted videos are not be eligible for monetization and are not shown in certain sections of YouTube. Age-restricted videos are also not eligible to be used for ads.

* Nguồn: Youtube