Anyone CAN handle the truth; whether they choose to or not is whole other deal altogether. Plus, a lot of it depends on the delivery and method of communicating 'truth'. It also depends on the level of comprehension and strength/vulnerability of the person at that moment.
There are so many things to consider when helping someone out. However, I truly feel the lying is not the answer. And that is not just a cliche.
People aren't idiots. WE can usually sense (even if it isn't at an intellectual level, but more of a gut level) when someone is BSing us. It is not a kind thing to do. Glossing over doesn't help. It is fair to try and meet someone where they are though. That isn't lying. That is trying to communicate.
I have had experiences in my life where I was young and facing sudden death of family members. I remember so clearly how folks would come up to me and go "We're sorry. Just remember God has a plan for us all." etc. etc. etc. "God will bring good things".
I was so disguisted (still am to this day). Important Real People had passed and these idiots were talking about God? ha! Why not talk about what was actually going on? That is how you deal with trauma. You don't shove reality down: you have to face it and CHOOSE to go on living because YOU want to.
Those are my heartfelt thoughts about this