Unfortunately, it is another one of modern day excesses, there are now grooming competitions and fusion styles which have come in from the Far East. I trained in dog grooming nearly 50 years ago. I have two poodles, I do their full groom clip, bath etc every 4-5 weeks, now due to my aches and pain, bad back, knee and hands I do them one dog one day and the other the following day. When I was younger I used to do at least 4 - 5 poodles plus a couple of other breeds, hot, itchy work. My two have just been done this weekend, so are nice and cool again.
They get the ears cleaned, teeth cleaned and checked, nails cut and filed, feet and pads checked and flea treatment done at the same time. They like to watch each other being groomed and bathed just to check they get 5he same amount of attention from me!