My kids are 13 and 15 and have been getting sleepover invites since kindergarten. When my oldest texted me in the middle of the night to come get him from one, I didn't hesitate. I want them to know ...

Dear Eric: When I text friends, they take their time responding. I mean days, if they respond at all. However, when they text me, they get annoyed if I don’t text back within two hours. They can get ...