Thanks for the help guys. really appreciate it.
the problem is that my mom doesnt really think that the bird needs anything other than food, water, and cage. Where my mom is from, parrots (or any bird) is just a commodity, something pretty to look at, not a companion. and no matter what i tell her, she doesnt believe me, thinking that it is just a bird, and doesnt really need anything.
actually, while typing up an extended response to everyone's complaints, i have reached an epiphany.
the problem is that the food bowl is located right on bars of the cage, where the shells can fall out of. To solve this, i would build a device that will stably hold both the water and the food bowl at the center of the cage, so the seed shells wont fall outside. the bottom would be protected with a skirt as well, to minimize the amount of shells that would fall out. i'll buy an air filter and place it next to the cage, so that the dust wont spread. How well would this work?