A bag can be used for many things, by every type of person. Sometimes its function is just to contain things inside and be thrown from here to there. Some people use their bags with care. Some people don't care. Specially at the airport, your bag can be a Louis Vuiton or come from Argos, once it is checked-in, it all rolls without care, they will be all kicked and all will be made to danify them to the max. It doesn't matter what is inside or who owns it. If it is not yours, it is more likely that it will be treated as a bag of shit.