Nah that's a common misconception. This fictitious 'coin shortage' claimed by every vendor in Thailand is just so they hope the westerner will say 'keep the change' because a lot of people are too lazy to wait for 25 baht change and they hope they can keep it for themselves.
I heard it's permanent deportation to your first documented ancesters port of origin. So if your great grandfather was from Yugoslavia, that's where you'll be deported to.
Cancer treatment in Australia really is something that can be relied on. Saved my mums life. But yes, other than that the whole public healthcare system is an utter disaster on the brink of collapse. It's very dangerous to be living in Australia without private health insurance because the emergency rooms are beyond capacity at all times. People are needlessly dying.