korea people can hear the country of courteous people in the East from person who live in oversee country. Korean people are already aware about the courteousness of the people from the East.
because a lot of people respect to older people in korea from old times because in the past, most young people respect old ones.
for example, some body have has a dinner with older people,
they have to offer good food to older people.
even thought though now days nowadays so many guys don't want to follow this culture
but I think we have to follow it but, I think we should still follow it
because when I gonna be old guy I can get a respect from younger guy   because, once I get old I can also receive some respect from the younger people. 

reminder:

== Should is used to show obligation.

advice:

== Don't try to copy some phrase or sentence from the internet although it sounds good, it would still be better to make your own sentences.