Why is re-defining your sexuality such a taboo? On Madeline Argy starting this conversation

I love a label! As someone who grew up knowing that "straight' did not fit, I longed to understand what term did feel right in order to finally gain a sense of belonging. Yet, why is it seen as such a taboo to change the label you first identified as? Let's talk the taboos of changing your label, being unlabelled, and the change from lesbian to bisexual, all from the front seat of the bus.