How do Australians typically react to foreigners criticizing local customs, and what's the best way to adapt?

Why is it so hard to understand why someone, whether smart or average, does something out of boredom, and how can we get better at figuring it out?
Why are Bill & Hillary required to give depositions when no one else named in files, including Donald Trump, has to do the same?
After spending so much time in thought, what has been your most surprising realization about the meaning of life so far?