And there’s a lot of other people who wear their watches inverted as well! If you have a fragile watch that doesn’t have strong shock and impact resistance. Wearing watches towards the inside of your wrist will protect it from random bangs and crashes which could crack the crystal and render the watch useless.
Those with wrist and arm issues sometimes struggle turning their hand and arm to check the time, especially if they’re battling arthritis which limits range of motion. Wrist watches positioned in an inverted placement require much less effort to check.
If you work in the armed forces, wearing watches backwards is extremely beneficial. From preventing glare to attracting enemy forces, it prevents various mishaps.