My mind interpreted it as 'a working infrastructure' as Zimbabwe is a war torn nation, so just like a lot of countries in those situations, the infrastructure would be shot, transport, hospitals, electricity, running clean water, schooling etc would be near to nothing.

So if you look at it like that, then she came to Australia so she could have access to those things. In a perfect world, I think everyone should have access to these things, no matter which part of the world they are in. But alas, not a perfect world.