Is it possible to glitch out of the map or otherwise escape Vault 101 during the quest Growing Up Fast? The novelty of being a minigun-toting 10 year old is something I don't want to pass up.

That would be so awesome! AND... Since Bethesda will not allow children to be killed, YOU'RE IMMORTAL!

Unfortunately, I do not know of a way to make that happen...

Well considering I'm bordering on being a senior citizen in real life, being able to play as a teenager is awesome enough for me. Of course, I always tend to cringe when someone in the game calls me "kid".

There are a couple of mods that allow you to play as a child

http://www.nexusmods.com/fallout3/mods/1669/?

Then this one is used to make the voices work right

http://www.nexusmods.com/fallout3/mods/16305/?

Console peasant not even able to buy a toaster to play the PC version. Though I do own it for PC. Bookmarked for future reference though.