What, because people are assholes? That is EXACTLY why LGBT pride parades exist. Straight pride parades don't exist because everyone automatically assumes you're straight unless otherwise informed, and saying "hello i'm straight" is likely to elicit a response similar to "ok", whereas saying "hello i'm gay" can elicit a response anywhere in between "ok" and "SPAWN OF SATAN I WILL STAB YOU TO DEATH". If people thought about LGBT with the same kind of indifference as heterosexuality, there would be no need for fear or pride parades.

THAT SAID, as a bi dude (yes you read that right, big shocker etc), i don't feel the need to participate in any pride parades or tell everyone i meet about my sexuality. It just isn't relevant unless people want to get really intimate, so to me it has the same level of importance as the shape of my feet; only relevant in very specific situations.