It is usually suggested by someone who wants to sell you a bird or wants your bird for their breeding program. The owner should work on their first bird's behavioral problems rather than complicating things by the addition of another bird that will probably end up with problems too. Two birds are harder to care for and keep tame than one. Providing a pet parrot with an avian companion will often create less bonded, less tame birds without extra work to keep them that way. They have little long-term effect and may actually create more problems that will continue because the underlying cause remains.
Behavioral problems are much easier to prevent than they are to solve.
Parrots do not know how to be good pets. We have to teach them. Without our nurturing guidance, they will spend their lives in confusion. Knowing a little bit about parrot psychology can help owners to understand the underlying cause of this behavioral problem. Parrots are social eaters and need to eat with their flock.