Everyone I know can get an SMS on their phone. Only a couple of those people can get email on their phone. That means that if I want to contact most of them q

Everyone I know can get an SMS on their phone. Only a couple of those people can get email on their phone. That means that if I want to contact most of them quickly, but quietly, I have only 1 choice: SMS. SMS would die quickly if something else came along that became ubiquitous overnight. Since we know that isn't going to happen, there's no point complaining about it.