It's going to get worse before it gets better. Since they chose not to have many children, there aren't a whole lot of young Greeks to take care of the elderly. Without pension checks, they're going to suffer a great deal.
When I was in Russia about 16 years ago, there were lots of elderly people begging on the street. Looks like that's coming back into fashion in Greece.
I could make snarky comments about the progressives and how they've excoriated "greedy" people like me for voting and arguing against welfare programs and big pensions, but these images are too sad for that. Suffice it to say that this is what happens when you separate earning from receiving, at least at the macro level.