Something must be going horribly wrong in Greece. You can live easily of 30k in the Netherlands, I would make that to even 25k. Yes, that would mean having no car and using a bike to get around (which is common).
Most parents I know pay almost 600 for rent (amenities not included, so add another 100, and quite a bit more if it's a colder winter). Fun to note that the minimum wage is currently around 500 euro, AirBnB is a hell of a drug. Add to that up to 400 for childcare a month, per young child.
Tax rate is near 40% at that income level, so let's say it's a net 30k out of the 50k. So that's 2.5k a month.
I will spare a list of the other required monthly expenses but it shouldn't be hard to see that it's hard to save up enough to ever buy property or to be safe against any event that costs any significant amount of money.
Something has most definitely gone horribly wrong in Greece a couple of years ago. I remember hearing that the costs of living in Greece at the time were not a bit lower than then expensive parts of western Europe, whereas wages for young people were quite a lot lower, making it practically impossible for young people to earn a living.
We haven't heard much about Greece in recent years, so maybe things have improved, but this sounds like maybe they haven't.
I have (single living) colleagues from abroad who learn it now the hard way. Hopping from one airbnb to the other, moving al their stuff each time. Doing this for months and they start to despair now. Even local youngsters cannot afford a home anymore.