We recommend it but it's not completely essential.
The Facebook group is our community hub, and we consistently receive feedback that it is one of the most valuable aspects of the course. It is used heavily throughout the course by participants, and the Launch Pad team.
But not all participants use it and it's not essential you're there, if you don't want to be.
If you have doubts about using Facebook, we have had previous participants set up a temporary Facebook account (using a nickname) purely for the Launch Pad. If that's something you would be happy to do, we can help you set this up.