I have done quite a few fairs now and have found that most of the people that come do not treat these fairs as " a fun place to have readings" they come with serious issues which need answers and quite honestly five minutes just won't do.
Half hours seem to be the norm and at most fairs readers wonder round, speaking to other readings and coming to an agreement on an across the board charge, we nearly always include a short 10 minute reading for those short of cash.
At my last fair I had a lady who was unable to conceive, she was very distraught and in tears, how can anyone then only offer her five minutes. These aren't just venues where WE can practice tarot, these are venues where people come to seek answers to some very important issues in their lives. As readers, we must never forget this.
I have never attended a fair where it is so structured that it dictates the time you can spend on readings, very often it is up to the readers, how many they feel they can do in a day and ultimately, it is down to how many will walk thru the doors on that day.
Eddie