The building that I work in is next door to a school.
To get to work, I have to cross a zebra crossing just outside the building.
There is a lollipop man who works at the crossing, helping the schoolchildren get across the road.
The weird thing is, when I am crossing the street, or when another adult is crossing the street, he will walk into the road and hold up his "lollipop" to stop traffic, just as if he were helping children cross.
I have lived near an intersection near a school in the US where there was a crossing guard, and the crossing guard only told children when to cross the street. They ignored adults.
It feels very strange, as an adult, having someone help me to cross the street. I say "good morning" to the lollipop man, because I figure it would be rude not to say anything, but I feel awkward.