Brother will be driving us to the airport. Brother will drop me and the rest of the family off at the curb, with all of the luggage, and then go park the car. Brother will then meet us in the airport. Can we check brother's bag at the curb for him, while brother is driving to park the car? Or does the owner of the bag need to be present to check the bag at the curb? I'm thinking that if the owner needs to be present, we should just say that it's my bag. I never check any luggage. (That's why I have an Owner's Locker.) Everyone can check one bag for free on this airline.