this is why we can't have nice things

The phrase "This is why we can't have nice things" is commonly used humorously or sarcastically to express frustration when something good is ruined, spoiled, or mishandled—often because of carelessness, misbehavior, or a mistake by someone. It points out that because of certain actions, nice or enjoyable things don't last or aren’t possible. Is there a particular situation you want to talk about related to this phrase?