The story
* According to some, the original nautical expression is just born with a silver spoon and describes those young gentlemen who were able to enter the Royal Navy without examination and whose promotion was assured. The converse was born with a wooden ladle. * However, the phrase is first recorded as a Scottish proverb in the form "Every Man is no born with a Silver Spoon in his Mouth" (1721).
Etymology from Wiktionary, CC BY-SA 4.0.