It is a long time commitment life spans of the bigger birds are longer than yours

. My bird is free to go anyplace in the house. He mostly just stays in this room with his cage. When everyone is gone he does choose to stay in his cage but the door is always open. All birds are different this is just what mine does.
When I first got him he would just poop when ever he wanted to poop and anyplace. Watched a few videos and did some reading on potty training. First I just got some of the dog ba
throom pads and put one on the back of the couch (need something close to both of you). When he was about to go (once you know your bird you when know when this is by body language) I would just set him on the pad. I would then tell him "POOP!" After a week he would get off me himself and walk over to the pad and "POOP" . I would also tell him to "poop" before I would pick him up at his cage and not pick him up until he would poop or try. It did not take long I then moved the pad in front of his cage and now he just poops at cage. He will fly to his cage and poop now and poop (or try) before he flies to me. Just got to say "Poop!" LOL Best NOT to use treats but only positive words when training or they will not poop at all until they get a treat..lol not good for them at all.
Best to get a bird from a breeder or anyplace other than a pet store. Also many birds around that need a good FOREVER home, it may be a little more work at first but well worth it, so may look around for bird rescues.
About the only thing my bird wants and must have is love..lol but he does need clean water everyday and fill up his food dish when needed (eats like a bird). He does take a shower with me everyday. Says "Don't look I'm naked!" when I undress..lol. A bird is really not a decision to go into lightly and truly would not recommend it to most people.