you only have to be 21 to drive uber. in south carolina, you have to be 25 to drive a cab. when i drove a cab, to get relicensed annually, you had to get a copy of your 25 year south carolina law enforcement division (state fbi) report. that said, uber clearly is NOT doing a thorough background check. and i sure as shit wouldnt want my loved ones riding with an "invincible" 21 year old.