Upside Down Tumble dryers

There are a number of things about the prevalence of tumble dryers in Australian households that used to disturb me that only after 3 years am I getting to understand.

1. Australia is a hot country, by and large, unlike the UK. So why does every new unit (read flat) have a tumble dryer provided by the landlord as a matter of course?
2. Why is said tumble dryer most often on the wall upside down?

Answers:
1. Australia is hot, even its winters are warmer than the UK but most places don't have central heating; something lots of homes in the UK do. One obvious use of that central heating is to prevent you freezing your bits off in winter however a by-product, condensation and all, is that central heating dries your clothes indoors. So no central heating = no clothes' drying mechanism, hence the need for a tumble dryer. Part B answer is that lots of unit blocks don't allow you to put your washing on the balcony outside, so how else do you dry your stuff with no indoor heating system?

2. They put them on the wall above the laundry sink or space for the washing machine, as a space saver. But as most people do't have easy access to the dials 6feet up in the air they turn the machine upside down. This then means that the instructions and dials are upside down. In my 3 short years here though I've seen some smart manufacturers turning the dials around so they look correct when the machine is turned on tis head. Clever!

My only worry now is, does the machine work upside down as well as it would the correct way up, I mean you wouldn't put the washing machine in upside down now would you?