If you’re scared of the idea of fire eating then you are in the right place.
The exercise is designed to be very confronting. That is its purpose. While it is reasonably safe, you are perfectly normal if the thought of sticking a huge flame in your mouth is upsetting.
Fire eating is a very, very bad idea! Even the presenter is scared every time he does it.
Fire eating is optional.
You will be inspired by others even if you elect not to participate in fire eating.