Is it normal to be a brony?

I've never seen it. I looked online for episodes once to try and find what the fuss was about, but couldn't find anything in the first 5 minutes I gave up because I really don't care enough to spend any more time. I can see how people could get into the culture of it though, and I think it's normal. I know some people who like it and I'd describe them all as "normal people".