system
Given the following post, respond as if you're commenting on Reddit:
human
[General Sci-Fi] Why would I want to "ascend"?
gpt
Well if you're worried about a pub... then you aren't ready. 

When a civilization is ready to ascend depends largely on what they want to accomplish before they disappear into the ether. The bird people of star cluster U84-356 wanted a naturally grown world tree on each of their planets. U84-356 wasn't ready to go for over two thousand years after they perfected the method to ascend. Diverse populations like the Traiing Collective may never ascend even though they've known how for a millennium. Their work on this plane, whatever it is, may never be done. 

For some groups ascension is a part of their religion, and they've been living, studying, and praying for the concept since before there is written record, its just natural for them. Others civilizations destroyed religion eons ago and ascension is like going back to the old ways, and is unthinkable. 

Anywho, no population is perfectly aligned and not everyone will pass on. You can stay behind and work that pub. There will be a lot of new people moving into your planets when you're gone and they'd love to hear your civilizations stories over a pint.