Just a repeat ... the op isn't referring to dogs that REQUIRE clipping ... like poodles, bichons, cockers, schnauzers, and terriers. When these coats are left to grow out too far and get unduly matted, shaving is sometimes the only option.
Unfortunately, folks buy dogs that they often 'think' that they are want and are willing to care for the coat, to find out later that they aren't up to task. Since these dogs are often still loving members of the family, clipping the coat is a good 'second' plan to just ignoring the dog's coat.
If care is taken to see that a newly shaved dog isn't exposed to risk of sunburn and the pet owner isn't concerned about a possible change in coat texture (which happens sometimes, not always ~~ spaying does that too but we don't recommend you NOT spay), it really has a place in grooming options.