How to watch Age-Restricted Youtube videos without signing-in?

There are many videos in Youtube which are Age-restricted and available only for logged-in users with age-limit. If you want to watch these videos on Youtube without signing-in then you can do it via below trick:

Age Restricted

If you want to watch this video which is age restricted:

Then you watch it using any of the below method:

  1. Watch it here by changing the URL to:
    Here gen is appended with the Youtube Video URL.
  2. Change the URL to
    Here watch?v= is replcaed with v/