Answer:
Standards of living in Western European Contries are higher than the world average because the GDP Per Capita of Western European Countries is higher than the world average.
Standards of living in Western European Countries are also high because the governments of these countries offer many social services, either free, or at low costs.
Western European Countries are mostly peaceful, with only very localized crime and violence.
Finally, Western European Countries developed very fast during the latter half of the XX century, but economic growth has stagnated in recent decades.
