I don't like my white legs. It did cause insecurity for me when I was a teenager, but I don't care that much anymore.
But when I say, 'white legs' - I mean that my legs are whiter than the rest of my body - but that's my own fault. I'm a fair-skinned person all over, but I spend alot of time outside, so my face and arms are browner than my legs, which because I don't like how white they are - are white because I seldom wear shorts, especially now that I live over here in England where it's never really THAT hot and it rains alot.
I know I could use fake tan - but yeah - it doesn't bother me THAT much.
But I do remember when I was in fourth grade and Harriet the Spy was the book that all the girls were reading, someone wrote in their 'observation notebook' - 'Rebecca H.'s legs are so white you can see the blue veins behind her knees...' (we had to wear dresses to school back then) and Mr. Temperini - our math teacher - had taken the book from the girl to 'punish' her because she was writing it in class and he read it out loud.
Unfortunately - that didn't result in him punishing HER as much as it resulted in punishing ME , and all I was doing was sitting there doing my math with white legs...
Yeah - so try not to worry about your teeth too much. Things change - and even if they don't - as you get older your focus and viewpoint will change.
Yeah - my legs are white - but they're in good shape from all the walking I do - at least I can say that - and that's good enough for me.