Rigging Isn't Scary: From Beginner To Intermediate [Manual Rigging In Blender]
If the course is available for free on YouTube why should I buy it here?
Buying the course is indeed optional. You'll get the same videos and resources whether you watch it on YT or buy it here.
However, buying the course will allow you to download all videos and watch them offline.
You can also receive priority support if you need help while following the course.