Do i need a boaters license if im going to use a 17' boat with a trolling motor?btw im 15?

im planning on purchasing an old 17' v-hull type boat and putting a small electric trolling motor on the back.it comes with the title and registration. would i need a boating license touse it in saltwater if it has all required lighting and safety needs life pfds,oars,,etc.? if so than is there any possible way i can use it without a licence? thanks for your replys i realy do appreciate them.no bs comments