Nail clipping is essential for a healthy dog. If nails are kept on top of whilst a dog is young the vain in the dogs nail can be kept short to avoid any discomfort in the future. It's a groomers job to ensure nails are comfortable enough for dogs to walk on to help with their posture and relieve any pressure from the toes.
I also offer nail clipping service on Saturday mornings for our small and furry friends. I have rabbits and Guinea pigs myself and know that keeping on top of there nails are just as important as keeping on top of our dogs.