A big amen to the "when will it end?"! I don't get the fixation on the diaper issue - it has been made relatively clear to viewers that Will is experiencing developmental delays. This does not mean that he will not catch up with his peers eventually....I'm retired but worked with young children for 25 years and have seen it so many times. Bill and Jen are (from what we've seen on the show - and that's all we have to go on) doing everything humanly possible to assure Will's eventual success. We've seen that they immediately sought medical attention for him to resolve his physical issues. We've seen that he is being treated by a speech therapist and speech therapy is being continued at home by his parents. They have hired a nanny who has training in the area of special needs children. He is living in a home that was specially designed for someone of his small stature. And, last but not least, his mother is a pediatrician/neonatologist! He and Zoe are blessed beyond belief...and so are Jen and Bil!