@Jnvlv there are worse things you could be into. If tattoos are your only "sin" they will get over it.
A point concerning your parent's side, if you are in school or some how they are helping out. The "their money" issue is actually real. While on another person's payroll there are certain rules to abide by. If they are footing the bill and you know they wouldn't appreciate tattoos then you should have waited until you're off the payroll. Not judging but as a parent and a guy with tattoos I see both sides. Also, I will NOT be happy if one of my kids turns 18 and thinks I'm OK with them getting tattoos. Establish your life and then do what you want and ensure it fits your lifestyle/profession.