

Passing through the airport should be no problem at all. As somebody who’s done a similar thing before, I can tell you that your aunt probably won’t run into problems. My bigger question is about the laptop you are looking at that is $30. It’s rare that laptops go for so cheap here, even used ones. I would advise you to investigate the seller to make sure they are trustworthy to avoid being scammed or sold a broken computer.
Meme of guy looking at two buttons:
“Psychology is junk science!”
“This confirms my biases!”