Not useless short term, it makes the bums life more miserable having to push their shopping carts back and fourth between locations. LOL Look at the bright side, the bums are getting a good cardio workout to keep them moving and healthy. LOL 

Long term wise, the county of Honolulu should be buying up those $1-dollar homes (D)etroit auctions off at every opportunity and ship the bums on the next cargo ship to their new homes with a deed in their hand!