Older pets are just as loving as young animals, but because most people want "small and cute" puppies and kitten first,
millions of perfectly wonderful older animals are euthanized each year.
If you're looking for a good companion, look for an older dog or cat.
They have lots of love to give and the admirable qualities that come with maturity.
"With an older pet, you will get a less destructive, more graceful animal, and one that has probably already passed "basic training" - you may not need to housebreak the pet, and it will most likely know to come when called and what "no" means. The animal will be spayed or neutered already. And if you work, a full-grown pet is better able to stay home alone during the day; this is especially true for dogs."
-- Provided by The Humane Society of the United States