Because they do what they want according to he president
Sometimes the president vetos
Ex. government shut down recently
Regional, inter-regional and international trade was a common feature of the Roman world. A mix of state control and a free market approach ensured goods produced in one location could be exported far and wide. Cereals, wine and olive oil, in particular, were exported in huge quantities whilst in the other direction came significant imports of precious metals, marble, and spices.
Entering a unpaved road I should look both ways and walk when no cars are around