If you stumble upon a YouTube video that, for one reason or another has been set as "age restricted," you can still watch the video without signing in or confirming your age. Just use this little URL trick.
If you remove the watch? and replace the = with a /,you'll get a link that goes directly to the video without the rest of the YouTube site, and it'll play full-width in your browser. So, for example, you would take this link:youtube.com/watch?v=6LZM3_wp2psand change it to this:
youtube.com/v/6LZM3_wp2psAnd you won't have to log in. Alternatively, you can add
nsfw before the youtube.com portion of the link:nsfwyoutube.com/watch?v=6LZM3_wp2psThis will take you to a different site to play the video, but it's a bit faster to type in