My friend had birds for a good portion of her life, she worked in a pet store and took care of their birds, and had a cockatoo for something like 15 years. Paraphrasing, but here's what she told me:
Owning birds, especially intelligent birds, is one hell of a commitment. Are you ready to have a flying toddler who will never grow up? Who will live as long as you? Longer even? How about an eternal toddler who has bolt cutters attached to its face? How do you feel about loud, sudden screeches at any time of the day or night? Do you have valuable items out that you don't want damaged? Do you have the type of home that can accommodate the amount of three dimensional space they need? If you were thinking you could keep one in a cage as their main habitat you're sorely mistaken.
Having a super smart pet sounds cool until you realize that they need entertainment, and stimulation, and not allowing that is a form of cruelty. If you don't provide it they will find it for themselves, very often in ways you do not approve of. Like any exotic pet, its needs can take over your life entirely, and unlike a dog there's no way you can just hire a pet sitter to take care of it. You will likely never be able to just "take a weekend away". Parrots are known to take sudden and intense dislike to people on a whim, how will you handle that if it's someone you want to have over more than once in a blue moon?
I'm not going to say there's no hope or don't do it, but it is NOT a decision to be taken lightly. A bird like an African Grey is an "expert" bird owner level bird. If you can take care of a friend's cockatiel or maybe a conure for a week and you fall in love, then maybe you can get one too. But there's many good reasons my friend owns a pigeon now instead.