Is is not possible that because being other than heterosexual is more accepted in many circles, young people simply feel more free to admit that they are in fact attracted to both sexes? Or perhaps it is a sign that young people are rejecting traditional gender roles more than they used to, which is also a good thing, IMO.
Is there a rule boook for what constitutes really bisexual?
In case it matters here, I came out as a lesbian in my mid-twenties, after several years of heterosexual liaisons, but the last time I fell in love, in my mid-forties, it was with a man. Personally I am done with labels. I am who I am, and others can be who they want to be too.