The longer my son plays soccer, the more one thing becomes clear: we, parents as a whole, have a lot to learn (and teach) in terms of compassion and team sports. At one recent tournament, over even the voices of the parents on our sidelines came the voice of a father on an adjacent field, constantly berating his teen daughter. The constant negative commentary was grating, and one couldn’t help but pity the man’s daughter. This may be an extreme example, but it’s not uncommon. My son’s former coach, at our first parent meeting, offered a story of a former player who asked to only play on one side of…