@supermadi hi. We were in adelaide (20 min from city area) for about 2 months last year and currently living in SG. Most of the locals are very friendly esp yung matatanda. In terms of safety, you don't see much people walking around the neighborhood at night compare to SG. One of the reasons why, could be, limited na yung public transport sa gabi. Also, my Niece is in primary school. There was a reported case na meron daw nasunod na car sa mga estudyante around school vicinity. So pinag iingat ang mga students.
Those were the only concerns esp if nasanay ka na sa SG. And in my opinion it is not even comparable sa safety problems ng pinas. SA for me has very homey and laid back atmosphere which we really like. 🙂