When do you start to train your child to use potty?

it’s recommended after 2 years. But she/he can sit his own, you can start potty training. i’m doing it he was 12months. I don’t use you should use potty. wakeup he sleeping after i sit on potty. He pippy to it... after 2 hours Again i sit on the potty. now he know Use to potty... You can try it