>>18502167
As you can see, it creates a clean silhouette and accentuates your natural proportions. It's even better if you're fit or just thin and have a flat belly. The reason people stopped tucking their shirt in the 2000s is because of the influence of American hood culture (and their saggy pants), and also because everyone started getting fat. So they stopped tucking to hide their pot bellies and break the clear demarcation of the torso and legs that a tucked shirt creates.