Hello my name is Alex, and im 14. I want to know whether its possible for me to

[Mr A.french]

acquire a Business card.? If so how?,from my understanding business cards let you access whole sale markets/shops, is my age restricting me? and also i was wondering how to distribute my products because at the moment i can only find short term buyers (the kids in my school will only buy one can of coke/sprite at a time in the play ground) thank-you.