I believe by statute passed in 1973 by Florida Legislature. See: Nicolay 387 So. 2nd 500 (1980) the age of Florida emancipation is 18. FSA 1.01(13) and 743.07 Here is Illinois the 20 year old is already emancipated.
So, I expect to be married in Florida you will need both parents consent.
If you are married in Illinois, the person doing the marriage ceremony will inquire if you have both parents consent since you are only 17.