Cockers are renowned for their merry, sociable nature but you must only buy from a reputable breeder. Cockers being one of the more popular breeds are frequently exploited by the puppy farmers & commercial dealers who mass produce puppies to supply the demand for pet puppies - these puppies are frequently sickly & may have poor temperaments due to irresponsible breeding & inadequate socialisation. If you buy a Cocker from a good specialist breeder, then you should have no problems with temperament, although remember that the ultimate temperament of a dog also depends on the care & training it receives with it's new owner. You can find guidance on buying a Cocker puppy
hereI note you are also asking about kennelling etc. You may find breeders reluctant to sell you a Cocker puppy if your intention is to kennel him/her outside. Cockers can adapt to kennel life if they have other canine company but generally, they prefer to live in the house as part of the family.
Jane