The problem is, you already have two pairs of shoes – the one’s you are wearing, and the other pair that is dangling off your back pack by its shoe strings. In survival mode it’s hard to make that decision. The shoes have value, and they are free. As a person with little or no money, being able to accumulate material goods is a way of compensating.
For many homeless people the temptation is too great and in a short amount of time they amass more stuff than they know what to do with, their collection becomes a huge burden. Having to keep up with shopping carts full of possessions is no way to be homeless.
It is best if you can limit your things to fit in just one medium sized backpack. You will be able to get around town easier, you don’t have to worry about things you’ve stashed around town. And you won’t be so obviously homeless to the people you meet.