I'd like to walk dogs in order to improve my own and other dogs' fitness. Dogs make the best training partners too for those long marathons. They never let you give up until they're satisfied. I've grown up alongside my own and my family's dogs from living on a plot with 15+ dogs to moving to a home with a large garden where we had our own 3 or so dogs and cats as well. I've walked quite a few different types of dogs from the exciteable to the calm, including my rescue case dogs. Pedigrees or mixed breeds, as long as they're four legged furry friends I never mind being around them.