Death definitely shouldn't be sugar-coated but I think it has to be explained gingerly to children. When I found out about death as a young kid I would have bad dreams about death. And I think about death all the time honestly, I hate it, I'm an idealist and I want Transhumanism to come along faster. What I hated about death as a kid was that it could be over for me before I even wake up, or my dogs could be dead when I come home, or my loved ones who may die suddenly or get cancer. I'm still adjusting to death as an adult, I may never get over the sadness of death until I feel like I've had a long life, longer than we can live now, or we have progress in medical health.
If the hypothetical idea of an afterlife means more to you than the objectively true reality we all share, then you deserve no respect.