bi people with a preference are valid
bi people who prioritize or exclusively date the same gender are valid
bi people who choose to only date the “opposite” gender, whether based on preference or out of fear/safety concerns, are valid, and are not cowardly or “actually straight” because of this choice
bi people who just happen to only have a dating history with one gender are valid
bi people who have never dated anyone are valid
all bi choices and experiences are valid