It's like when you are under 15 and watching a movie where a character gets raped or another has an abortion. The reality will only hit you later in life and that story won't be as easy to watch.
It's like that episode from DS9 where Captain Sisko tells his son his writing is dull because his son doesn't know what he is writing about and Siskok encourages him to write about matters he knows.
Or in Good will Hunting, when the psychotherapist explains to Will something along the line of "you can deconstruct my psyche and analyze it but you don't know jack about it".
Likewise some games that were recently acclaimed for their approach to the subject (Celeste, Old man's journey, Sea of solitude) really fell dull to me.