I am going to use voice to text here so forgive me. I was listening to this emt Who has interacted with a lot of dying people. He would typically lie to them when they asked if they were going to die. He said that when he switched to brutal honesty that they seemed happier. He recalled a woman who adopted 4 kids and 3 became doctors one an engineer and she felt she was a failure. He told her she did a great job and they would have great lives because of her.
My grandpa was in the hospital and he knew he was going to die. It was almost certain due to being a lifelong smoker. I remember a nurse going in there and asking him what his problem was. She gave him a pep talk that encouraged him to focus on. Things in his control and framed things in a very positive way. She didn't lie to him at all about his situation. After that he was extremely happy.
There is a documentary on Netflix about the guy who played Spartacus and followed him as he was dying of cance. It may have been titled "be here now".
At a certain point he accepted his fate. However he struggled to get his family to accept his fate but he was much happier when he did.they got through the grieving process sooner by accepting he would die and they focused on enjoying their last days together.
Being obliviousmight be a completely different story but I can't help to think that it is ignorant. You can really help out an estranged loved one by calling them and saying that despite what happened you re happy they were in your life and say goodbye. It might prevent a lifetime of guilt.
You can finally write down your secret BBQ recipe that you held so close, that way your children can use it when they want to relive memories of you.
There is a lot of value in knowing it is coming.