You’ve got two options:
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
/,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.
youtube.comportion of the link.