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.
It's also important to make a distinction between the time that puppies reach their full adult size versus the time it takes them to mature. Most canines reach their full size by the time they are 12 to 18 months old, although it does take longer for some of the largest breeds to finish growing.