Don people call themselves bi because they are afraid of the gay or lesbian label?
Mainstream society often makes no distinction between lesbian, gay, bi and transgender people, and lumps all into one large “queer” category, so trying to gain larger acceptance with a bi label is not, in reality, very effective. Also, identifying as bi can be controversial in gay and lesbian circles, rather than an asset. People who identify as bisexual are being honest in refusing to bow to pressure to identify as either straight or gay.