The wall was not high in old days.

But now..
The wall is so high as if people compete with the wall’s height.
A certain house is surrounded with sharp spits on the wall, even another house puts a broken pieces of glass.

The wall is as high as the adult.
Because people can see the chimney of next or front house.
In the evening, if the neighbor’s chimney is not smoking, the problem happens or they go hungry.
That’s why they don’t make a wall so high to see a front house or next house while they set the table.
If the chimney is not smoking, the neighborhood shares the meal.

The warm heart to consider others, we cannot see anywhere even in the advanced countries.