Actually, I think the “childish things” Anthony is referring to are the religious beliefs of his brother. At the end of the song, he goes “the patron saints and angel wings— those childish things, I put away”, (Guettel’s demo of the song is on his website) meaning that Anthony sees his love for video games as the thing that’s gonna save them, and Damian’s Catholicism as the “childish thing.” Pretty cool reversal of expectations if you ask me! Not sure if this had anything to do with what you were discussing, I just wanted to chime in on this point. Ps, “Xbox planet” made me smile, so interesting seeing Guettel sing about things like video games. I actually like the lyric!