Sure, but I don't think anyone is pretending that it's all we need. There is a subset of the population who isn't showing up because they forget. For them, text

Sure, but I don't think anyone is pretending that it's all we need. There is a subset of the population who isn't showing up because they forget. For them, text messages are helpful, and for everyone else they're non-harmful, so it's a net win. It doesn't mean that we stop looking for ways to improve things for everyone else.