Organizations like the ASPCA regard dog parks as beneficial to dogs and to dog owners. According to Dan Emerson of DogChannel.com, proponents of dog parks cite the following benefits: "They promote responsible pet ownership and the enforcement of dog-control laws; give dogs a place to exercise safely, thus reducing barking and other problem behaviors; provide seniors and disabled owners with an accessible place to exercise their companions; and provide an area for community-building socializing." Dog-park regulations vary from park to park; some are quite extensive and comprehensive.