First Funeral I attended was my Grampa's, I was 11, it prepared my for the loss of my DGF when I was 16. My Granma & Granny died went I was younger, I was aware but little was said. My DF died when I was 23 which was sad but not unexpected.
My DGS wasn't quite 3 when my DH died, his beloved Gramps, my DD talked to him & he still remembers Gramps now (he will be 7 in March). The other day at swimming he was talking about Granddads with a friend, DGS promptly informed his friend that Gramps was dead - bit of a conversation stopper but pure honesty.
I wear 2 gold chains & last year DGS asked me why I wear 2 chains, I told him one is mine & other belonged to Gramps, his response "are you looking after it for him", I confirmed I am - he's happy. DD also has a photo of myself & DH at the top of her stairs which he sees every day.
Best policy is to be honest & age appropriate with small children, they will ask questions but also accept honest answers, don't ever make it impossible to talk about their loss, it can be hard when you're grieving but children are curious. As far as my DGS is concerned Gramps is in Heaven & watching over him.
for those dealing with loss in their family