I agree that it is highly individual. In our situation, peanuts are a relatively mild allergy, so we are okay with minor cross-contamination. We usually don't worry about "made in the same facility as". We do encourage checking labels every time, as manufacturers change all the time. Our issues have been primarily with restaurants and dairy products (it's amazing how many people ask if you want cheese on that, right after being told that there is a milk allergy!), and "I don't know, it comes out of a bag, and we threw the bag away already".
