A bright, shiny, very lonely exception
In this scenario, Joan is an extreme exception. Most of the parents we see today (parents of exceptional high school students) willingly and gladly make sacrifices in their lives to do things that are the kids' responsibility, not theirs. Many high school/college freshmen age students don't even make it to Andy's confusion because, unlike Joan, their parents would have said, "Absolutely. I'm sorry for letting you oversleep. Can I do anything else to make it up to you?"
This isn't a new phenomenon. It's been reported in the popular press, including Newsweek. So when will people start recognizing it as a problem?