My family used to voice their disgust when gay charactes on soaps kissed. Saying it normalised it for young kids.
My parents and their neighbours who they were really friendly with bullied this gay couple in our block of flats and they had to move. They would say slurs when drunk or make gestures about their orientation. One even attacked them when drunk and the police got involved.
So I grew up thinking it was impossible for me to be bi or gay or lesbian. I absorbed their homophobic attitudes without even realising.