Is it better to have never known something than have to known something and to ultimately lose it later

It may be better to never have gotten something. If someone gets something and ultimately loses it later, he might end up feeling upset and depressed when he no longer to possess that thing. For example, in the story "All Summer in a Day", Margot had remembered seeing the sun in Ohio when she was four. When she went to Venus, she no longer got to see the sun and she ended up being in the state of depression, where she physically turned pale and she refused to talk to anyone. The situation was worsened when her classmates started taunting at her, causing her to be mentally unstable. On the other hand, the other children on Venus did not remember seeing the sun and remembering its warmth and therefore, they were not very affected when it rained continuously and the Sun did not come out.