Bonjour!
1. The references are that he is singing about a hobo, lifestyle without a home and that it is really hard to live how the hobo is,
2. It describes it with everything that people have ( a house, cars, phones, food, toys, clothes... etc) and how he doesn't have anything
3. Differences are that he is rich and a hobo has no money or food and hobo's have to beg or they steal for the things that they have