The meaning of pinky promise tattoo is childlike innocence. Remember the pinky promise in childhood? When we make an agreement with our children or get a promise from our parents, we always blink our eyes, then show a naive smile like the whole world, stretch out our young fingers, pull the hook, and say the sentence: "pull the hook, hang up, 100 years, no change".
Recalling that pinky promise, it flashed crystal clear innocence, including unreserved trust. Later, when people grow up, such innocence seems to be gone, and such trust is gradually drifting away. I don't know whether this is the real society that makes people more rational, or the so-called cost of growth? I wonder if you can calmly make a promise like a little finger, or accept it with confidence?