It sounds soooooo weird to us normal "working class" folk. I assume literally everyone, no matter their current career/job/education level, worked a menial job as a teenager. That's because where I am from ALL teenagers were expected to participate in paid employment (and some were expected to help with the family's bills) and where else are you going to work as a teenager? I wouldn't ever consider bringing it up - I consider it very bizarre to bring it up like that, it would be like bragging about how you graduated college even though you went to public school growing up.
In some ways I regret I wasn’t just taking in my youth at that age (and I recall some customers, in good nature, commenting to me I was too young to be working) but at the same time it helped in giving my the work ethic and drive to make retiring very early an option if I want it.
I guess I just saw the chance to work as an opportunity. An opportunity to build myself.
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!