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That is a normal income for U.S. families with kids old enough to be surveyed. When you start with teenage kids, you end up getting families that are in their 30s, 40s and even some 50s. Also you are often talking about some dual earning families.
Also, many of those kids are getting phones second hand from their parents.
But also, yes U.S. kids have new iPhones. You buy the phone with financing from the careers and the cost spread over two years is pretty small for a middle class U.S. family.

Financing, the evil genius, or is that stable genius. I have trouble with these things o_O
 
When I was in high school in the late 00's and early 10's (yeah, last week) I had an iPhone 3GS and then a year later an iPhone 4 (thanks Dad!). I know how stupid this is but then it felt like a pre-requisite to be a cool kid. I think this is even more the case today. I wouldn't be caught dead with a 1 year old phone.

Good thing time passes. I have a 32GB 7+ and couldn't care less about what people think of my phone.
 
I have 6 teens/young adults, all but 1 uses an iPhone, I've had 3 of them just say they won't use the phone outside the house if it was anything other than an iPhone. They have gone so far that I hear their side conversations, if a message comes in "green" they say they ignore it or will read it later. At first I was thinking as they were aging that it was just a fad like saying I have this type of phone but then their friends all visit and it's definitely a young adult thing, they are stuck to their iPhones or at least until they have to start paying for themselves. We'll see. One thing I won't do is assist them with annual upgrades, they want those that's where money from their own pockets come in. I have 3 pre-teens and from the looks of it, they are easily influenced by the teens, down to the 5 yr old asking for an iPhone, the iPad just won't do according to him. It's cute in a way but annoying in other ways because they don't know in my opinion none of them should be walking around with a mortgage in their pocket.
 
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