What Government? All of Society should have collapsed and almost all Nuclear Reactions would have set off a Chain Reaction within a week of the Snap irradiating almost all of the World.

Yet instead we got people in Tents and the Government not doing enough. Still have Cops and Schools and Hospitals and Teachers and everything else like it was just poor people who suffered and not the entire World being tipped on it's head.

Money no longer existed. Property. Everything. It was a lawless wasteland - half of the entire population including animals and planets just disappeared in an instant - Everything would be complete and utter chaos, death and misery, Avengers or not.

It was a cool moment, with absolutely no for thought and made a massive Plot Hole for the rest of the MCU going forward.