Definitely an animated feature for all ages. There are some meditating hippies that travel to the afterlife, but they are presented with good humor and irony. Also, suspend your cynicism about humans having souls for 90 minutes, it won’t kill you. The closest thing to god in the movie is introduced as an interdimensional being crossing all barriers of time and space, and it looks like a stick figure that changes shape, and there are several of them, and their name is Terry.
Watch closely when they get to the land of the lost souls. I’ll gladly supply spoilers but I just wanted to introduce this for now. I got it on Netflix DVD disc, but I’m not sure what Pixar is doing these days as far as releasing it for more streaming opportunities goes.