英语题目 急!When I take a walk around Washington Square Park,I of

英语题目 急!
When I take a walk around Washington Square Park,I often see many people walking with dogs.It is still true that a dog is the most useful and faithful animal in the world,but people have changed the reasons why they keep dogs as pets.They used to keep dogs in order to keep safe,but now they keep them as friends,because the city can be a lonely place.For a child,a dog is a playmate when he has no friends to play.For young couples,a dog is their friend when they feel lonely at home.For old couples,a dog is their child when their real children have grown up.Now you can see the reasons why people keep dogs.
1) For what did people keep dogs before.