See Lesson kits below (KS1 for ages 5-7 & KS2 for ages 7-11) for United Nations Public Service Day.
More details available here.
KS1 & KS2 RESPONSIBILITY 4 - Respect For Others with The Big Think Questions: (KS1) How do you show respect to the people you see every day? (KS2) Do you show respect for the people who work hard for you?