Do you have goats and are you looking to sell the milk or make soap to sell?
Well in some states you have to have a license to sell those products. If you decide you want to sell those products then go to google and type in the top bar, do you have to have a license to sell goat milk in ________? [ type your state here]
If you do need a license make sure you get that before you mess around with the products. If you don't need one then you can go ahead and start any time, but you may want a license in the future.
hope you have a fun time selling!!!! :)