Organisations without a BYOD policy have the benefit of selecting a small number of devices to support, while organisations with a BYOD policy could also limit the number of supported devices, but this could defeat the objective of allowing users the freedom to completely choose their device of preference.
Do you know that when talking about puppies, most trainers and behaviorists consider a puppy to be a dog that is just born to about 6 months of age? This may be a bit confusing because many of us have been told over the years that a dog is a puppy until about 1 year of age.
Physical maturity isn't the same as sexual maturity; some dogs reach sexual maturity as early as 8 months old, but that could be well before the dog has finished growing. Little dogs, often considered as weighing 20 pounds or less when fully grown, reach their adult size much faster than larger dogs.