Does New Credit Card Bill effect me from getting a credit card even if have a job?

I heard the new bill prevents me from getting a credit card if im under 21 but if i have an income such as working at rite aid or a pizza place can i still get one without a co signer. But if thats not the case can i still get a prepaid credit card not a debit one but one like the upside or capital one prepaid if they have one where i can load money on it without paying a monthly bill or fee. Or even if i have a jo do i still need a cosigner because im getting a job and just turned 18 and need to build credit since i dont think debit cards or secure. I would use it to pay 50 dollars at a time for like food and stuff and pay it immediately to build credit please help this law i really is annoying me. I mean you can join the military and hold a gun at 18, smoke, get married, and drive a car and they are doing stuff like this?