Do you think I should still get it?

I’m 18 & I planned on getting a tattoo above my ankle. just a rose nothing too big or extreme. I feel like that’d be easier to hide from my mom because she’s against tattoos. My brother has one and he’s getting 2 more same time as me but on his arms because he simply doesn’t care. She told him not in my house even though she already saw the first one lol & she told him that our grandpa (he’s a architect & very serious) won’t take him serious anymore but my grandpa son which is my uncle also has tattoos. I know my mom would be mostly disappointed in me because I’m a “girl” and shes just always on me harder. So I’m debating if I should still get it or not. My mom does the most but I feel like I can just wear sweats around the house or longer socks😭. What would U guys do should I still get it? This isn’t the tattoo this is just the location. She hates them because in the Bible it says don’t mark up ur body etc. I believe in God but the Bible is man written so I don’t base my life off of it...