As western countries have been becoming richer, families have chosen to have fewer and fewer children. The reason a lot of people have cited is: “It is so expensive to have children now.” This complaint has become a lot more valid when Apple cooked up the iPod, iPhone and now iPad.
Imagine if you had 10 children. You might have 12 iPhones in the household. It would be a challenge to keep straight whose iPhone is lying on the table.