Dues ex machina aging is bad. Don't do it. That is all.
Also
drama explosiiioooon because apparently snarking at someone's work is the same as insulting them and is on par with ableism or...Something. My brain kinda skims over the walls of text.
Firstly, the Bronze drakes don't let people tamper with the timeline because some mortal happened to get bored of parenting and thought teenagers r kewl. And mentally a few weeks old? You're gonna have a lot more developmental problems then 'weird' kiddo.