My son had never bothered to set up his voicemail box on his cell phone. He had literally never talked on his phone. He had his phone icon buried in a group icon so you couldn't even see it. Teenagers text, right? September 1 came and went and a couple weeks later I mentioned that I was surprised at least a couple coaches hadn't called. He looked at his phone and pulled up the phone app and said "Oh shoot, I got a couple calls I missed on 9/1". He called them back and tried to explain why he hadn't responded for two weeks. I don't think that went over very well...