This might seem like a silly question...but you never do know on these forums! I'm assuming 3 girls as in human children, the youngest being 7? I'll go with that!
I can only speak in terms of the pink ball of fluff currently sitting on my knee, eating the drawstrings of my pants. We can make generalisations, but must remember that they are exactly that - generalisations.
Marley is flighted. I've gone through periods with my birds where they are clipped, and periods when they are flighted. In our household, it's circumstantial. Currently the main reason all 3 are flighted is because they're relatively new to one another's company.They all come out together in the evenings especially but often during the day, and having working wings allows them to be with the others on their own terms. He willingly flies to both the shoulder of myself and my husband so it's pretty awesome knowing that trust bond is there too.
The other reason for flighted Galahs is that they're highly prone to fatty tumours, therefore a decent diet is imperative.
Marley is the nippiest of the three, and easily the loudest. Henry talks and talks and talks and is ridiculously noisy....Marley doesn't make much noise but when he does it can wake the sleepiest of kidlets. He's also a bit of a dust bunny. He needs to be in a large room and the dust kept on top of, otherwise it messes with my husbands breathing (mild asthmatic) - could be a kid weary issue.
He's not a super talker, but he's conversational with my IRN. They'll play bonafide peekaboo, and when Henry leans in for a 'kiss kiss', Marley will reply with 'kiss kiss' and they both touch beaks with a smackeroo type sound - very cute!
Kids can handle birds but carefully. That being said, my miss 7 frequently handles a sulfur crested 'too, but is still working her way up to Marley.
Hmm what else? He's definitely the most affectionate of my 3! What attracts you to the RB2?