Genetic
The Fallacy
Deciding if an idea is good or bad based only on who told it to you.
Why it's wrong
A good idea is a good idea, even if it comes from someone you don't like. And a bad idea is bad, even if your best friend says it.
Example
My little brother told me how to tie my shoes, but he's a baby, so I'm not going to listen to him.
What the Fallacy?! (ELI5 Edition)