Final answer:
Entrance to the Circus Maximus was free as part of the Roman 'bread and circus' policy, which provided public entertainment subsidized by the Roman state or wealthy elites.
Step-by-step explanation:
The historical records indicate that entrance to the Circus Maximus for watching chariot races and other public spectacles was typically free of charge. This practice was part of the broader 'bread and circus government' policy, wherein the Roman state or the wealthy elites subsidized public games and theater performances. This policy served as both a way to curb urban unrest and as a socio-political strategy to display wealth and generosity by those funding the events.
Entertainment such as the performances at the Circus Maximus was considered a legal right of urban citizens, adding to the bread and other provisions that were freely distributed. This public welfare system was integral to the Roman way of life during the Imperial period.
In essence, Romans didn't need to pay an entry fee to enjoy the spectacles at the Circus Maximus, as these events were designed to be accessible to all citizens, reinforcing social cohesion and the perception of a generous leadership.