As for telling family, it takes time and lots of it and sometimes even then they don't get it totally. Because they're not living it. We explained celiac disease and things the kids could not eat to our parents at the beginning. We've since added foods they can eat and now feel confident they can pick the right food. CC in their house is another story however and something we're still working on at almost 2 years out. And still, my MIL brings up a comment that makes me think she doens't totally get this yet (like saying you can outgrow after I've repeatedly said you cannot, that you have to eat gluten-free FOREVER). It's frustrating but you learn to ride it out, keep explaining, and have a hawk's eye while you're there eating. Plus, I think it helps to always share doctor appointment info with them. Like how the kids are growing, what the latest labs are, how they're doing on the diet, etc.