I had never quite looked at it this way, but apparently belief in an immortal soul is not restricted to believers. I thought it was until I ran into this aside posted by Glenn here
If you don’t experience something now in this irreplaceable life, it is lost to you forever.
Your statement assumes that others share your mistaken belief that after death, a person will be consciously and continually aware of what was missed.
At first I thought Glenn's statement lacked logical connection to the OP.
But then there were several positive replies and upthumbs.
So, can one not believe in a god and still expect his consciousness to extend indefinitely?
Or am I as obtuse as my grandchildren claim?