I got my first (and only, at this point) this year. I told my parents, and they weren't thrilled, but they didn't take it too badly. My dad has always wanted one, but is too afraid it will hurt. My mom tried to guilt trip me for a long time, but now she doesn't make a big deal out of it. I got my symbol (basically a capital "M" with a line horizontally through the middle) that I created out of my initials (all together it looks like two A's and an M). It's about the size of a soda bottle cap, and it's on the inside of my right leg (very easy to hide). It's also extremely simple, one solid color (dark purple), and took $20 (not including tip) and less than 20 minutes. My tat means a lot to me, because it's literally who I am, plus I've been using the symbol since middle school. My cousin was concerned, because she figures I'll have a different last name if I get married, but I assured her that I'll always be AAM at heart.
i told my parents, they wanted to stop me getting it but they should know what i am like by now...if i want something i will go out and get it no matter what anyone does or says.
honestly, as long as your over 17 or so, your parents shouldnt really have the right to say shit about it. (unless its actually a stupid tattoo)