I think every bird should be accustomed to having his/her feet held. It's just a firm opinion I have and it's what I do with ALL my birds (okay, so I don't do it with my budgies...).
I show how to do this using Hymie the Hyacinth Macaw in the video above. It's short and easy. And it's something you have to work up to if your bird isn't used it. It can be uncomfortable for them right away, so putting small pressure with your thumb over their feet at first and rewarding calm behavior and the tolerance of them letting you do it, is good enough for a reward. Eventually you will get to the point where you can take them from point A to point B while holding their feet.
It took me 10 days to get Hymie to be able to let me take him from one place to the other while holding his feet. And I started in very small steps and for the first few days I could only hold one foot! Every bird is different but you can do it with your bird. It's necessary if you need to take your bird outside to put him in an aviary or whatever, it makes handling much easier and safer all around for everyone involved.
Article by Jamieleigh Womach. She has been working with parrots and toucans since the age of 17. She isn’t homeless but is home less than she prefers to be. She travels the world with her husband, daughter, and a flockful of parrots whom she shares the stage with.