I like this definition. Anecdote time. My great-grandfather left his home at the age of 12 to work in a coal mine and send money home to his mother. I'd say

I like this definition. Anecdote time. My great-grandfather left his home at the age of 12 to work in a coal mine and send money home to his mother. I'd say he was as much an adult as any college grad today. My wife's grandpa managed a dairy farm. He got sick once when my wife's dad was 10 years old. Her dad milked the cows so her grandpa could rest and get over his illness. He hasn't stopped milking cows twice a day for 50 years. I'd say he was an adult at 10. My dad was taught to work like a man from an early age, but was also taught to drink to excess. I remember when he got his last DUI. I was about 11 years old. I'd say that was when he finished growing up. The dividing line between childhood and adulthood for me is a total blur between the ages of 18 and 28.