It is a general phenomenon across the Western developped world, here is the account of a professor which went viral a few months ago: https://news.ycombinator.c

It is a general phenomenon across the Western developped world, here is the account of a professor which went viral a few months ago: https://news.ycombinator.com/item?id=43522966 https://news.ycombinator.com/item?id=43522966