Catherine, Duchess of Cambridge, the wife of Britain's Prince William, gave birth to a son, the royal family announced Monday, April 23, 2018. The newest arrival to the royal family weighs 8lbs 7oz.

Catherine, Duchess of Cambridge, the wife of Britain's Prince William, gave birth to a son, the royal family announced Monday, April 23, 2018. The newest arrival to the royal family weighs 8lbs 7oz.

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Kate and William can afford 3 kids. Many Brits cannot

For the Duke and Duchess of Cambridge, having three kids won't break the bank. For many other Millennial Brits, a family of that size just isn't an option.