I said nothing about what is "allowed". I said that any felony or misdemeanor case in which the only evidence is the testimony of a single witness is extremely weak. As it should be.
Let's put a number on it, shall we? How many times have you personally witnessed a traffic court judge denying traffic school to an otherwise eligible defendant (i.e., no traffic school in the preceding 18 months, a offense eligible for traffic school, etc.) after (s)he has lost a case? And how many times did the judge allow it?
My own eyewitness account is 5 to 10 cases when it was allowed, and none when it was not. In the interest of fairness and accuracy, all of these were in SF Bay Area.

