Anyone who considers adding an additional cardholder should be aware that while you can put a limit on them, those limits are useless when international charges are made.

I have seen this sort of thing proposed here a couple of times and have a very hard time believing that anyone is going to take you up on it. The risks outweigh anything you may offer IMHO. You may not want to hear this but.....you should probably concentrate on building your credit history then open up your own account.