Dear Annie: We have a very close friend whose 16-yearold daughter, “Lily,” babysits for us quite often. There have been a couple of times, however, that Lily has not had her phone with her when she comes to babysit. I like to check in often with Lily to ensure things are going well with my kids, a 3- and 4-year-old. So when I couldn’t get a hold of her one day, I called her mom, who is our…