My grandad is in the final stages of terminal cancer. He is 86, bed bound and on oxygen. He is, however, still very much "with it".
My dc's are 4 and 6. They're not especially close to their great grandad - they've probably seen him 3 or 4 times a year.
My dd (6), in particular, is very sensitive. When my aunt had cancer a couple of years ago, I had to take her with me to visit her. For months and months after she was obsessed with death and people dying. It's only really been the last few months that she's stopped asking if someone is going to die if they're sick or have a cough 
It really affected her.
So, that's the background. My issue now is that my grandad keeps asking where my dc's are. I've deliberately kept them away because I know it would upset them (well certainly dd). I went to visit yesterday and he got quite teary and said "I'm probably never going to see them again, am I?" I felt awful
On one hand, I'd know he'd love to see them. On the other, I want to protect them. I'm genuinely torn....