If you look on the internet for more then 5 minutes, you will find hundreds of websites telling you - DO NOT GET A COCKATOO. Don't do it. They are loud, destructive, can do a great deal of damage to your body- skin, bones etc. Personally, I don't think this helps a person a great deal. Many people think WE WILL BE DIFFERENT. WE KNOW BETTER. WE HAVE EXPERIENCE AND CAN HANDLE IT........
That isn't always true. I thinking adding any bird to your home should be more then a knee jerk response. (one major reason I don't like bird sales at auctions, bird marts and other animal related events. For more on that- see this page) It is something the entire family should think about and consider. When adding certain species- it is more then emotional- it can be for medical considerations. Certain species, such as cockatoos, greys and tiels (among others) produce a GREAT deal of "dust" and/or "powder". Certain people consider them different things -dust being what is flaked off when a bird preens (cleans their feathers) or just playing around, kind of like skin... And "powder" is a fine powder composed of keratin. This dust and power can cause TONS of problems for people with asthma, COPD, other lung problems, allergies etc. Cockatoos, Greys and Cockatiels are known for causing breathing reactions in people. So it isn't just a simple reason, it could cause medical problems.