DEAR DOCTOR K: I have an 18-month-old who loves to play on my iPad. I think it's fine; my wife doesn't. What are your thoughts?
DEAR READER: The only thing I can say for sure is that I'd rather have your toddler play with your iPad than with mine. Seriously, you've asked an important question, because we see it everywhere: babies and toddlers playing with their parents' tablets or smartphones. Parents use these devices to entertain their children, and in the hope of helping them to learn.