I kind of agree with the above to be honest. I was supposed to get braces on the NHS when I was 15, I would have got it done for free. It was basically because most of my adult teeth never came through because there weren't any under my teeth that feel out. So my teeth have gradually fallen out and left gaps where no teeth will ever come through. Luckily this has happened to teeth at the back not the front but recently 2 new teeth came through where there were teeth underneath and now they're pushing my front teeth forward so that one is crossing over. So my front teeth are crowded and back teeth are sparse.
Because of all the complication, the orthodontist didn't want to go through with braces when I was 15 because they wanted to see what what happen. Now I'm 24 and can't get free braces on the NHS because my problem is classed as 'cosmetic'. I will have to pay thousands of pounds if I want this fixed, which at my age is impossible when I just starting out in the world and don't have that kind of cash.
If someone offered me free braces, the last things I would care about is what color they are. You're lucky.