It’s a common misconception that boys should be trained differently than girls — or that boys are harder to potty train than girls. In reality, regardless of biological sex, all kids should learn to use the potty in a sitting position. This is mostly for safety, but also to prevent confusion and stool withholding. Once your little man has a good grasp on both peeing and pooping in the potty, then he can begin to stand up to pee.