I have trained HS kids to officiate for county youth leagues, but last year the county decided to use adults. They did not require NFHS tests, but made they made their own certification test from the previous year's NFHS test. The adults worked out much better than the HS kids, but only because they got more respect from parents. I don't think they are better officials.
I have also trained adults for our local church leagues. There, they often required team members to ref the game before or after the game they played in. So, it was a victory to get consistent referees who at least had a couple of hours of training.
Legal liability has never been raised as an issue. Are there really laws about these things?
