"you might not understand"

Stories that are prefaced by “you might not get this till you’re a parent” automatically make me angry. If you tell me a story about your kid just tell me the story don’t start with some idiotic statement and then go into telling me a story about how a kid says something that is so literal. Or how the kid hit a big milestone. I get it’s a big deal to you. I might not know the joy you are feeling at the moment but it isn’t rocket science. Most importantly I can handle a story about your siblings, parents, friends and I can definitely handle stories about your kids or grandkids. I get happy when Daisy does something cute. I don’t go around and say “you might not get this till you own a dog” I could care less if you own a dog or not. I just want to tell you my story.

And besides you don't use that phrase for anything else. You might not get this till your parents die. You might not get this till you lose a leg. You might not get this till you are able to travel into space. I'm just a little miffed maybe I'm jealous...but really is it necessary to point out to a person that you know doesn't have kids that they don't have kids? Or to say to the person next to you "i have a cute kid story that I want to tell you because you're a parent and you'll understand" and then go into telling a story about a kid puking.