People who have never coached won't pass the platform evaluation. We've got a ton of info spread out around the site and in the forums on the credential and what it takes to pass the evaluations. This is a good start: Get Started - Become a Starting Strength Coach
Yes.If you go to a seminar and want to be evaluated as a coach later on, do you have to pay for a whole new seminar?
When you sign up for the seminar there will be prep and information sent out. You'll bring your workout clothes, maybe some food, a pen, and a notebook. There are other things that you may want to bring. This is not a comprehensive list.