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So I can't speak for the other Services (though I'd assume it's similar) but in the Marine Corps there is a trend of young Marines right out of boot camp or A-school meeting "The One" and getting married way too young against the advice of everyone in their command.

These typically fail miserably, don't last long, and serve no purpose other than teaching what NOT to do.

In the same line of 'if the Marine Corps wanted you to be married, we'd issue you a wife' these are sometimes referred to as practice wives.