See here is the thing people on this site are adamant about seperate housing, but the reptile shop I get my phoenix worms from houses about 2-3 beardies per cage, all NFS(not for sale) these are all germant giants, and the most beautiful active beardies I have ever seen, and my goal for what I want for my beardie.
So I'm a little indecisive because these beardies are so healthy, so active, like all of them are constantly moving around there viv's, some head bobbing, but never aggressive toward each other, and some just running around seeing what's going on. I know this site has good info, but I feel from talking to the owner of this place that maybe people on this site are overly cautious, because I feel like they do benefit from having a friend in their cage, I don't think anything likes to be completely alone, beardies are no exception, they don't like spending all day waiting around for you to get home.
I don't know maybe I'm crazy, but I feel like having another of their own species keeps them at ease, like for instance since I started housing my two beardies Lizard and Novas together, I've seen a complete disappearance of stress marks from Lizard, and they do interact Novas will try to stack on Lizard, but I remove them and they are always aware of each others movements.
I don't know because these are the only two beardies I've ever had, but they seem to have plenty of space, and they are more happy staying together, maybe when they're adults they'll need to be housed seperately, but in my opinion having two beardies together might take away a little of the madness of living in a little cage, and being picked up by some large monkey that feeds you and keeps you hostage.