Wow, you all have some great ideas, experiences and insight.

Michelle, that sounds so frustrating with the caregiver situation. Even the most well intentioned family members have made mistakes in the past here. It took us all a long time to really find every hidden gluten, but it is much nicer for all of us now that we all get it.
I hope you have a good talk with them!

Al, you bring up a good point that is similiar to this. Alcohol. My daughter said "I'd like to try a sip of wine". She is 6, so she is not supposed to be drinking. Understood, but I was not sure what the best approach was to this. If I sternly tell her to never drink cause alcohol is bad for her and yada yada yada (but then she can drink when she's 21?) I fear she will just want to sneak it to taste it and such. But then if I did give her a sip of wine, I don't think that would make her less likely to sneak it as a teen.

I agree that responsibility should come with age and maturity. There seem to be so many facets to these questions and answers, though. It can be hard to know what to do, as a parent!