Am I ashamed?

I haven't really told anyone. In all fairness, I don't really have anyone to tell. Im not a really social person. Don't really have any friends. Defiantly no really close friends who would deserve to know something so personal about me. Im a firm believer that it is something that is deeply personal and isn't anyones business in general. Not on that level with my coworkers either so they don't know. The only people that know are my parents.There still are a lot of homophobic people out there. I see them everywhere. Its really easy to stop when no one knows about you and everyone acts like themselves around you. I don't really want to deal with all that nonsense. Let alone wonder what everyone is saying behind my back or wonder if something happening in my career might be due to the boss finding out that I'm gay. Does that make me ashamed or am I being realistic?