I'm 44 and my channel is almost exclusively directed at a game, which of course will always have a younger demographic. At first I thought it was a negative, but I now believe it to be an advantage. For one, it's different. People will always like different. Second, wisdom comes into play. I know how to react to certain situations better and avoid drama, and I believe people kind of expect this as well. And third, I think being older conveys a sense of responsibility that others lack.
In short, use your age to your advantage.