My parents don't like my tattoos, either, and my Mom (whom I love and adore completely) actually called me the other day after perusing my Instagram and seeing one of my new tattoos. I'm older than you are, @Morrigan, have multiple degrees, have a great job, and she was still critical of my tattoos and "disappointed" I'd gotten another one. I've lost count of how many I have, and I keep thinking she'll get used to the idea —apparently not. Just try not to worry and keep doing your own thing. She'll get over it (or at least get used to it).