Living in Japan...
http://kotaku.com/5484581/japan-its-not-funny-anymore read this great article. Japan is very role orientated, strict on rules of behavior. People expect you do act in certain way. That includes everyone. Salarymen, highschool kids, hooligans. Each of those groups must act in certain way to fit the society.
about Australia tough.
Don't recommend Perth. It is very "chilled out" town. It's town where you could settle down, have kids and live relaxed life. It is also in the middle of nowhere. There is nothing really out there except the city and lonely painful death in the desert.
Melbourne tough I recommend with all my heart. Firstly, the location gives you access to pretty much 80% of the country. Beautiful countryside with dozens of places to visit. Only 10 hour drive or quick flight to Sydney or Adelaide. You can even visit the Capital just so you can say you've been there (there is nothing there tough)
As a culture capital of Aussieland it is all very 'nice looking' city. It has a very nice charm.
It is also second biggest city in the country so it has lots of things to do every day and night.
Much better choice than Perth.
Some random costs I incur:
200 AUD for a room in five bedroom house 20min from CBD by train (five min walk to station). That's a week and I don't pay any bills. Good location good price for what I am getting.
29 bucks per month for cheapest phone (only 500MB of data to use.
8-10 bucks for medium meal in Macdonalds. Cheapest footlong is 7.5 in Subway
20 dollars for a decent meal with a drink in decent restaurant.
a good steak is 20 bucks and more
a night out is normally 100 bucks. Entry to a club is 5-20 bucks. Very easy to pay even more.
Pubs are cheaper and its anything from 4 bucks to 8 for a glass of beer (depends on the local)
Train ticket is 27-50 dollars per week (50 bucks will allow you to travel to pretty much any part of the Sydney)
a 0.5L bottle of coke in vending machine is 4 dollars
Entry to a strip club is min 20 bucks
Good bottle of vodka costs 50 bucks for a half litre. JW Red is 38 bucks. Jim Beam is 40 and more
2L of milk 3 bucks, a snickers (if not on sale) $1.8 a bottle of 1L pepsi in supermarket $2, a loaf of bread $2-5 (depends what kind)