I know this fandom as a whole is dead and no one's gonna see this more often than not, but I'm just gonna post some theory (is it really a theory if it's just thinking about something too literally?) stuff: So Billy's career started when he was 6, that's canon, realistically his parent(s) or a guardian would have had to be involved. He was underage he couldn't sign contracts or anything legally, much less a contract, by himself, an adult would have had to be present and I feel like this means that either: a. His parent(s) or guardian were basically the equivalent of a pageant mom, b. He was literally born for stardom (that's the whole reason his parents had him), or c. His parents or guardians were just really gullible, similar enough to Spencer's parents in the fact that they saw dollar signs.