If you use USD and want Yen you don't necessarily have to exchange them. You can start working for Yen. It's the same with bitcoins. You don't have to buy them you can just start services to earn them. I like it better because then you don't have to give out your ID to some online company!
absolutely thats the proper way to do it,you dont have to present ID to buy bitcoin this is decentralized we dont need to be presented thats why this is the best option to save investments because of our privacy .do what mates said and you will have your bitcoin