To my knowledge yes, I bought my freshwater license at a Walmart in Mississippi in the hunting section. I'm not sure if its done in every state however.
yes
Wal-Mart does sell fishing supplies. You could purchase a fishing rod or reel to use in a lake. Bait is also available at Wal-Mart. Tackle boxes are available in a variety of colors and sizes at Wal-Mart.
1,99$ at walmart
yes
Fishing reels can be purchased from many different stores. Some of them are Cabelas, Walmart, and Bass Pro Shop. Fishing reels can also be purchased at any outdoor sporting goods store.
Sporting goods stores like Dick's and Cabela's sell a wide range of fishing accessories. Stores like Walmart sell basics, though the selection is much smaller. Local bait shops often sell accessories as well.
georgia
yes
Sea fishing rods can be bought from many online websites and retailers that carry fishing supplies. Walmart, Sea Isle Tackle, and West Marine are all examples of such shops that sell sea fishing rods.
every state has a wild game management department this department issues your fishing licenses as well as hunting licenses
Game wardens can check for fishing licenses and the number of fish caught.
Not until your 16...Till then, enjoy all the free fishing you can.