Why didn't Ralph want to tie his hair back in Lord of the Flies?

When the novel was written people had definite ideas about how a boy should dress and wear his hair. Boys and girls were regarded as two distinct and entirely separate groups who were expected to conform to different stereotypes. For Ralph the fact of having long hair is bad enough but to tie it back would make his appearance even more girlish, something which he has been conditioned by the mores of his society to believe is totally unacceptable.