Except “near death” is not exactly the same as the “afterlife”. Unless they actually experience such a thing they don’t know, and if they do experience it, they’re dead and not coming back! How do they sort that conundrum out?
Nothing other worldly and dying wasn’t scary at all, under those circumstances anyway, (surrounded by people determined that I didn’t).
I am convinced that death is not the end though, it’s not living that’s scary, (ooh I’m so deep I really should be taller).
In slightly more serious vein, the late broadcaster Michael Bentine had some interesting experiences after being in a coma. In later life he was president of the Association for the Scientific Study of Scientific Phenomena.
Now this doesn’t mean that an after-life is necessarily true – more a case of I like to give some credence to people I respect. Which I suppose we all do to a certain extent.
The neuroscientist Peter Fenwick has studied Near Death Experiences for many years. He doesn’t claim to know about any after life but his conclusions about what we experience on the way there (or not) are very interesting.