An Uber driver in the midwest US can die from a simple treatable disease (or ruin himself financially) because he might not have health insurance.
Europe is big and very diverse place. Uber driver in
midwest (US) makes more than a senior dev in Spain,
Italy or Greece.
You can't just do a simple currency conversion to compare them, because the costs of living are very different.
A senior dev in these countries will have a nice standard of living. Much better than an Uber driver in the midwest US. As an Uber driver you would be very lucky to even make money considered "middle class."
Uber drivers make only slightly more than what is considered a living wage in most cities. For example, an Uber driver makes around $20 per hour in NYC. So maybe $40,000 per year.
Is $15 an hour enough to live on? Not in New York
City. MIT researchers’ estimates of a true living
wage in New York City range from $16.14 an hour
for a single adult, to $21.55 for two working parents
with two children, to $39.93 for a single parent with
two children.
Keep in mind that a one-bedroom apartment in NYC costs about $3,000 a month!!! An Uber driver would work 150 hours a month just to pay for that! He would still need to buy food, clothing, healthcare, etc. This person cannot remotely think of raising children as an Uber driver. Somebody making $40,000 per year in NYC would probably need to share housing with roommates or family.
However, cost of living in Athens is so much lower, it is not even funny. It looks like a 1BR apartment costs more like €500-800. This seems easy to afford for a senior developer. At least, it is much easier than our poor Uber driver in NYC.
Of course, I just picked Athens as one example. But are you telling me there are places in Europe where senior developers can't even afford their own apartments?!
A senior dev in these countries will have a nice standard of living. Much better than an Uber driver in the midwest US. As an Uber driver you would be very lucky to even make money considered "middle class."