right-handed, placing the buttons on the wearer’s left side could have made them easier for someone standing opposite the wearer to fasten.
It is an interesting explanation—but historians don’t consider it a proven single origin for the tradition.
Why Men’s Buttons Are on the Right
There are also several theories about men’s clothing.
One explanation connects right-side buttons with the way men historically carried weapons.
For centuries, many men carried swords, knives, or other equipment on their bodies. Having clothing fasten on the right side may have made certain garments