I bet this has been discussed here before, but anyway..
How old were your children before you gave them nuts to eat? I mean whole nuts, like salted peanuts. My dd is nearly six and I thought she must be old enough now so gave her some to try - she seems to love them! (I told her it's important to chew them thoroughly).
I have always been quite strict about her not having nuts for all the usual reasons, but dh and I eat them and I wouldn't want her to avoid them forever!