And when you live in a small village in africa
My take on this is that the person being envisioned doesn't actually own the computer they are checking mail from, hence webmail and browser.
With larger birds such as African Grey's, there is a really high risk of injury to the bird if they are allowed to grow up flying inside a house. Young birds do not understand glass for instance, and will attempt to fly into it, ultimately doing harm to themselves. To offset this, the non-permanent wing clipping is employed to prevent them from taking flight. This doesn't prevent gliding, however, so they can still leap safely off ledges to the floor to get around. Once they're older, you have to take into account that the nearly or fully grown bird has never flown, so you keep clipping the wings as they don't know how to use them.
I've never owned a Parrot but I grew up with one and my parents opted to not clip his wings. The net result was a lot of snapped feathers and a bird with neurological damage from running into things full tilt. Not pretty.
"Any excuse will serve a tyrant." -- Aesop