Did you mean that state employees/teachers, usually don’t contribute to State Retirement Plans? If you did, you’d be correct. In my state, Florida, we do contribute to SS.
AS was explained to me there are 15 states that only allow contributions to a state pensions fund , with no contributions to SS
apparently Fla is not one
Tex, calif colo and 12 more do not require teachers to contribute to SS
and they do not collect from SS, only from the state pension fund