Why can't he just do what other Chinese people do and buy a rip-off instead.
Because many of the knock-offs are junk. I still find it quite amazing what they'll try and pass off as an 'iPhone'.
You can't use the full capabilities of the iPad in that country anyways.
Of course one can use an iOS device to its full potential in China. Perhaps not the Twitter and Facebook trivialities, but those the only things which will not work here.