Age restriction bypass on YouTube
If you open a YouTube video marked 18+ without being logged in, the service will require you to log in:
login to verify your age"
In this situation, you can address bar before "youtube.com"
add "nsfw"
and go to the corresponding page.
You will be redirected to the site “NSFW YouTube” where these restrictions will be lifted.What the final site address will look like is shown in the screenshot.