Yeah I misread the context, sorry mate.

Perth isn’t in South Australia, but AFAIK Adelaide doesn’t have an underground train line either. Australia doesn’t really have ‘subway’ systems, just a few underground stations around the inner city, at most.

For what it’s worth, a lot of mainstream culture in Australia comes from the British colony and European immigration so they might be on to something.

In Australia, depending on the state you live in, footie/football is assumed to be either rugby league or Australian rules football, unless the context makes it obvious that you’re talking about soccer (association football) or rugby union.