Study reveals that second-born kids are the most problematic ones, and it makes a lot of sense

Maybe today this isn’t very common, but back in the 60s or the 70s large families were very common. We used to have 5 uncles and aunts, and in some cases, even more. But today, we are only children or only have one  brother.

Perhaps today’s economy has changed, or we choose to have an only…

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