think being a carny would be a good fit for Bae as a job. They travel around a lot, don’t have the best reputations, and it’s probably a relatively easy job to gain after leaving the foster care system. Or maybe a traveling circus or carnival found him or vice versa when he came here, and he just stayed with them.
Also Bae wouldn’t have a whole lot of understanding of how this world works, only being here for two or three years before they let him out of the system, so I don’t think he would do as well in school as the other kids (not that he’s not smart or anything, he just wouldnt’ have the same background info). As much as this fits, I kind of want to see him with some Millitary experance just as a kind of middle finger to Rumple.