There are many (including myself) who worked professionally, and fed ourselves and our families. I agree with your various comments. I would consider your tee

There are many (including myself) who worked professionally, and fed ourselves and our families. I agree with your various comments. I would consider your teenage experience as experience because you did something, learned from it, and clients paid you (and didn't demand their money back) because you provided them value with your work. Regardless of whether you consider your teenage time work as "professional experience", you have learned lessons and have built up on that learning.