Question

What is the generational crisis being faced by many countries of Eastern Europe?

Answer 1

Many young people are leaving Europe seeking more opportunities and higher wages, leaving behind an aging population that will require more services from the government. so your answer would be:

young people leaving in search of higher wages, leaving behind an aging population.

Answer 2

For the answer to the question above asking What is the generational crisis being faced by many countries of Eastern Europe? The answer is Young people leaving in search of higher wages, leaving behind an aging population.
I hope this helps