What you all can't seem to accept is that some jobs aren't worth minimum wage. And what you're saying with MW laws is that those jobs shouldn't be allowed.
Slavery is outlawed. What you are suggesting is "soft" slavery.
Why should the government get involved in a private contact between me and an employer? If I agree to work for a very small amount for a short time to gain experience in a lucrative field and enjoy future success, you can go pound sand. Ever hear of an apprenticeship?