I'm not going to visit my grandpa often
Why don't you want to visit your grandpa?
He makes me think of death, and I'm scared of that.
I need accept that death is part of life. Avoiding your grandparents for things they're not responsible for is hurtful to them.
Nah, I'm going to stay away from him because he's old.
But don't you think you might regret not visiting him after he's gone? You should spend as much time with him as you can while he's still alive.