I think a lot of what we like as adults is formed by family expectations and what we see as teens. Finding your father or brother's porn, or magazines shared with friends. This is what everyone else likes, so I should like it too. It can also create confusion because if your friends like one thing, and you really don't, then you have an internal struggle over where you fit in.
My step father, and other adults always said horrible things about gay men. They are bad people, they are going to hell, don't be like them, etc....At some point, I figured out that I liked the same thing as these bad people they were always talking about - yet I wasn't a bad person. Let me say that my step father was a horrible example of a human being. I realized that no matter how bad he thought gay men were, I would always be better than he was. That was the end of the internal struggle.
My husband had a completely different journey to get to where he is / we are today. His family came from Cuba when he was a small child. He and his twin brother were raised with the expectation that they would marry and have kids. He knew he was attracted to men at a young age, but put it aside because of what he was taught. His father died when he was 17 and I think there was also the thought that he didn't want to disappoint him. He married at 20 and by the time he was 26 they had 3 kids. They divorced after 21 years of marriage because he could no longer deny who he truly was. His twin brother married, had 2 kids, and divorced as well. He came out a few years after my husband did. Their mother was absolutely ok with it. They have several first cousins who are gay, and she just shrugged and told them to be happy.
My mother was cool with it. She just wanted me to be happy, and I am.