Recently I was updating a colleague about the status of my company when he asked, "Why so much emphasis on potty training?"

He's a confirmed bachelor. No kids. So, it's no wonder why he would ask such a question. But anyone who has struggled with dirty diapers for over two years knows exactly why a company that is dedicated to helping parents solve parenting problems would start with potty training.

For example, there's no bigger inconvenience than a dirty diaper away from home, and there's n...