system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do governments bail out their banks instead of just letting them go under?

With everything that has been going on in Greece lately I was just wondering why governments would go bailing out banks that have a lot to do with the problem. After the financial crisis of 2008, the U.S. also bailed out its banks even though again they were the ones to blame for the housing bubble.
gpt
Because when a company goes bankrupt, that means it doesn't/can't pay its obligations. What obligations does a bank have? Well it owes money to all the people who have deposited money there. 

By bailing out the bank you are indirectly bailing out the people who have deposited money there. And by letting the bank fail, you leave those people in trouble.