How’s your weak hand? Sure, you can snatch a dumbbell equally well with both hands, but can you brush your teeth with your weak hand? How about use chopsticks? A computer mouse? Laptop trackpad? Cut your food? Whisk eggs?
Training yourself to use your weak hand is an important aspect of coordination and dexterity. It opens pathways in your brain and reinforces muscular control. Go on, I dare you. Try to use your weak hand for something for one month. Use a mouse with your computer? Switch it over to your weak hand. You may feel like a total klutz in the beginning, but you will be surprised how your body adapts and grows. Pick something and go for it. You can only benefit.