OOOOH yeah, Sexy Goth chick!!! Except for the fact that she was SIX YEARS OLD on the Addams Family tv show. Christina Ricci was 11 when she portrayed Wednesday in the first Addams Family movie.
Sweet tights, Big Bird!! Big Bird, of course, being a six-year-old boy who doesn't understand what words are or how anything works.
Snow White was 14. She's also apparently not mature enough to realize that she definitely shouldn't still be eating that apple.
Pippi is nine. And given the amount of adventures she's constantly going on, she'd most certainly wear something more breathable.
Pebbles was a literal baby. Unless this is supposed to be Pebbles from the 1993 tv movie I Yabba-Dabba-Do! when grown-up Pebbles and Bam-Bam get married. Which it probably is, because people are still constantly talking about that.
Tweety is both male and clearly a child (or a very babyish-speaking adult, though canaries only live to be about 10). Though this model did totally nail the seductive ass-pose Tweety Bird is constantly making.
Granted, this one's not quite as overtly 'sexy' as some of the rest, but that said, Elmo is THREE AND A HALF YEARS OLD. Though maybe this costume is just an unrelated sexy human-lady wearing Elmo's severed half-face?