My 6yr old daughter says she has a boy's voice. It isn't very girly.
I would have said the same about my own voice when I was little. These days, when I speak, I still sound like I did when I was a teenager, so still quite child like. But, I sing quite a lot (at home, in the car, etc) and I think I have quite a large range, the lowest is much deeper than most women, but the highest feels very falsetto. When I sing something like 'Endlesss Love', the male part feels right for me, the female part is not my natural singing voice.
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"We act as though comfort and luxury were the chief requirements of life, when all we need to make us really happy is something to be enthusiatic about." Charles Kingsley