Few things could be more American than volunteering to help others. So it’s a shame when our altruism is thwarted by another, far more lamentable American trait: big government. Juan Carlos Montes de Oca knows firsthand.A cosmetology student from Tucson, Montes de Oca felt inspired when he heard about a barber in London who donated haircuts to the homeless on his days off. So he decided to do the same for homeless veterans in Arizona. He did this free of charge, of course, to give the veterans a better appearance and a more positive outlook when applying for jobs.“Out of...