A Mason Tattoo

I went and got a tattoo in remembrance of my grandfather who was a mason. I didn't have anything to remember him by so I did it the best way I know how. And that was to get a tattoo (with the mason symbol) but I'm not a mason. I didn't know I couldn't get the symbol because I'm not one. I just wanted to honor him by getting the tattoo but I kinda feel bad because I'm not a mason but I didn't know.. Am I suppose to feel down about this?