Passage 2
Shopping-bag ladies don't beg publicly, but they do not refuse what is offered. Once a shopping-bag lady appears where you live, it is as hard to pass her by without giving her some money as it is to pay no attention to the collection box in church. And although you may not like it, if she chooses your doorway as her place to sleep in the night, it is as morally hard to turn her away as it is to do with a lost dog.
Most shopping-bag ladies seem to be between the ages of 40 and 65. They wear layers of clothes even in summer time, with newspaper between the layers as something against bad weather.
No one knows how many shopping-bag ladies there are in New York. The number is going up. Some persons and researchers spend a great deal of time taking care of or observing shoppingbag- ladies and doing what they can to better the life of lady hermits(隐士) who're down.
35.They fill newspapers between the layers of their clothes because ______.