Why do so many men shamelessly flirt with women young enough to be their granddaughters?

@HardIsLife has done this to me several times. She charms me and tricks me into going out to the Burger King next to where I live. She asks about what I did in the Korean War so of course I start telling her about it. Meanwhile she's frantically stuffing fries and cheeseburgers into her mouth. Then she dashes out with half a burger in her mouth leaving me to pay for it.

My memory isn't what it used to be, so she keeps playing this trick on me. All I have left is my boomer war stories.