As Australia drives on the opposite side to the USA - the general thing to do is slow cars move to the left and most overtaking is done in the "fast" / right la

As Australia drives on the opposite side to the USA - the general thing to do is slow cars move to the left and most overtaking is done in the "fast" / right lane(s). In practise though, people go slow in the right lanes and are not considerate of other drives. Some even think they have the right to prevent others from speeding and deliberately do 5-10km/h under the limit. The thing is, by not following the practise you cause other impatient drives (rightly or wrongly) to weave in and out of lanes passing on both sides which increases chances of an accident - due to the increase number of lane changes.