The You’ll-Agree-With-Me-When-You’re-Older/More Experienced/Male Logical Fallacy
Example Usage
A: P is true because of X, Y, and Z.
B: Pff. When you’re older, you’ll realize that P is false.
Comments
Being young, I get this one a lot. At some level, it’s an argument to authority: I have X and you don’t, therefore I am correct and you are not.
However, there’s a deeper issue here. One who uses this fallacy is implictly suggesting that the goal of the discussion is to get the parties to agree about what is true, not to actually find what is true. This is a dangerous attitude; would the person assume their beliefs were true if there was no one around to challenge them?
A good way to improve such an argument would be to use it as a form of evidence, not a dismissal of the other party. For example, instead of saying “You’d agree with me if you’d worked in the coal mines for years.” try saying “Well, I’ve worked in the coal mines for years which has let me see firsthand why P is necessary.”
http://www.aaronsw.com/2002/agreeWithMeFallacy