Having a credit card is also used as part of verification processes in a lot of countries if you are are self employed in your own business or work free-lance.
I feel advising people not to use credit cards at all is kinda just assuming that other people are all so dumb that they can't avoid racking up unserviceable credit card debt.
Incidentally, I have also been trying to move country, but I haven't succeeded yet. I don't know if I will ever get out.
To compare to other people in this thread, who report rental costs of ~ £350 a month, a single room in a rat-infested shared house can cost more than double that in this country (that's what my brother was paying, and yep they had rats). It is not atypical for more than half of somebody's earnings to be spent on rent here.
And to add on the credit cards/loans: At least here, where I live, some companies have partnerships with banks that give better credit conditions to their employees. Also, a lot of the credit cards include a better health insurance than the one that the state provides.
So it's not all gloom and doom to get a credit card. Just don't max out your limit on stupid shit every month.