You’re a fan, we get it...They live in Australia, kind of hard not to find people without unique names. In a country like that people wont think twice. Also they are most likely going to be athletes not lawyers or doctors. So their names wont affect them in the long run. Their dad is an olympic swimmer so people knew about them before youtube.
OH MY GOD! The fact that the kids or the mom was upset about the gender before they were born means nothing! Who cares any person can understand the initial disappointment when its a gender you weren't expecting. Disco is not going to be hurt because they wanted him to be a girl, He wasn't even born yet so they don't know him. You are allowed to be disappointed. Its nothing against their sibling. Any person with a brain would go oh they don't dislike me because i'm a boy they just weren't expecting me, but now that they know me they love me. Biggy doesn't "act" like a girl or more feminine because his mom thought he was a girl. He has FOUR sisters, hes bound to play with them and do things they want to do.