I know exactly what you mean...If I had kids, I'm sure my mom would be feeding them meat. She thinks that if you don't eat meat you're hurting yourself and starving yourself....Haha! Your 10yr old is funny 

 That's how most kids think at that age. 
And I'm surprised at your 13 yr old...How wonderful 

I asked about your kids because I'm wondering how I will handle that when I do have kids...Is there any research or anything that says how to have vegan kids and them get all the nutrients and things they need at those growing stages...Are there any good books on it?