I worked from 12 up, from a farm to a bakery/barista to a salesman. Basically, I was the oldest of 5, there just wasn’t time/$ for the paid activities that a lot of suburban kids do.
Work as a teen is similar to sports in terms of life lessons and leadership development. It’s so lame when people pity people out of ignorance. The dozen people from the barista gig I kept up with mostly did pretty darn well in life this far, 20 years later!