Doctors won't even sign off on vasectomies for most young (under 30), healthy adult males. So, good luck with that plan to sterilize your 14-year-old kid.
Why does it have to be the vegan this or the vegan that? If the food slaps it slaps, that's all that matters. I'm not a toddler, you don't have to trick me into eating something. Prepare the dish and let it speak for itself. Disguising it as a meat dish isn't how you convert people.