When you're a kid, growing up is the last thing you want to do.
Actually, growing up is the last thing we want to do too, and we still remember when the original Tim Burton Batman was in theaters
(::collapses onto table and weeps uncontrollably::)
However, given the chance to say a magic word and instantly become an adult with superpowers? You don't need the Wisdom of Solomon to know what our answer would be. SHAZAM!