system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] Why doesn’t the government assist superheroes?

Why us it that, SHEILD aside, we never really see any involvement from the government when it comes to catching supervillians?
gpt
In The First Avenger, the government fund Erskine’s experiments to create an army of super soldiers.  The government aren’t shy about wanting to take Tony’s Ironman tech and are actively investigating The Mandarin in IM3 (hampered by Killian having the Vice President on his payroll). The government are aware of the Mjolnir anomaly and are investigating in Thor. The cops and Feds are all over Scott/Hank in both Antman films. Spidey messes up the Feds ferry bust. The army are hunting and engaging with the Hulk. The government(ish) fire a nuke at New York to cauterise Loki’s invasion. The government (or Hydra) are hunting Cap in Winter Soldier. Civil War is predicated on global governmental reaction to enhanced individuals.

Governments are clearly doing a lot but being ready to deal with new, crazy bad guys at a moments notice is asking a lot. 

Much of the time, the heroes are a lot more visible than the villains and aren’t always easy to discern whether they’re good or bad. As new villains pop up, it’s unlikely they’ll be prepared (tough to transition from your plan to arrest a guy with electric whips to then deal with an eight foot tall purple alien looking for magic cosmic jewels).