What you mention above is true. Pat from Saturday Night Live was not small framed, but was "soft". It's clearly a personal preference, and there are strong opinions for and against. While some people may find Pat from Saturday Night Live attractive, I don't.
Choirboys in Naples Italy were castrated for the opera & the Papal. If castrated before puberty, the boy remained boyish, soft with no adult muscle, voice stayed high, and they were smooth skinned.
In the 1800-early 1900's, a Russian cult used to castrate boys before puberty. The boys developed a distinctive appearance and perhaps a distinctive personality. Because they never completed normal puberty and missed the developmental changes brought about by the adolescent phase of testosterone production, men castrated as children remained beardless with fresh, clear complexions and had patterns of fat deposition characteristic of women. The epiphysial plates, that is the growth plates, in their long bones did not close at puberty, resulting in an individual with unusually long arms and legs and a tall, though frail stature. The bones of the lower face did not mature, resulting in a triangular face with a small chin.
Same is true in dogs. I assume the breeders listed below suggest buyers of their dogs wait, as they don't want undesirable lack of development traits to negatively reflect back on their breeding program. Wisteria Goldens | Wisteria Goldens on Spay/Neutering | WisteriaGoldens.com
"Families often ask when they should spay or neuter their dog. This issue has been debated among the experts for awhile. While I have always offered my opinion, I also advise families to discuss the pros and cons with their vet in order to make the best decision for them. From my research and experience in raising our English Cream Goldens, it became noticeable that dogs spayed or neutered at a young age, were not as well developed and proportioned dogs as ones which were left intact until full grown.
While I am not a vet, it seemed reasonable to me that removing organs which produce vital hormones before a dog was fully developed would cause developmental issues. I compare it to teenage girls and boys going through the puberty. Teenage years mean hormones are released which turn girls into young ladies with curves and boys into young men with muscles. Most obvious to us are male dogs neutered at a young age and how they lack muscle build and are “leggy” in appearance.
We personally prefer the well-developed muscle and build of a fully developed Golden Retriever and have advised families to wait until the females goes through her first cycle and a male be at least a year old. While there are inconveniences associated with this decision, such as keeping a female from becoming pregnant, we personally do not mind the inconveniences in order to achieve full development of dogs. We would make this choice even if we were raising “pet only” dogs.
I discovered an article that was written by Laura J. Sanborn, M.S. “Long-Term Health Risks and Benefits Associated with Spay / Neuter in Dogs.” It is important for all pet owners to read this article, and take it to their vet in order to make a truly informed decision about spaying/neutering early. While there are inconveniences and risks with spay/neuter at a later age, there are also long-term health consequences for doing it at a young age.
A few health risks associated with spay/neuter dogs at a young age are:
Osteosarcoma (bone cancer)
Adverse reaction to vaccinations"
To each his own, though, clearly some people find pre-pubescent characteristics appealing.