No, you're probably at the median age of any active fans.
Most active Sailor Moon fans range between the very late 20's to early 40's. Sailor Moon is an old property and unlike other franchises, it has not kept up with the times. There are exceptions in this thread, but that's just that...exceptions.
If you admit you like Sailor Moon, you've dated yourself. Young people generally don't watch or follow Sailor Moon.
There are plenty of fans over 35, but few will admit it openly. A lot of the people who watched Sailor Moon in the nineties were older teens and very young adults; that's who was driving the whole fansub culture (think about it, kids in single digit ages wouldn't be able to get fansubs on their own). When you get past a certain age, you start getting ashamed of saying your age publicly when talking about cartoons of your youth.
35 this year and I think nowadays people don't feel ashamed anymore about their love for cartoons and manga, it became mainstream (it always was in a way?). really, someone that says cartoons are just for kids must be from a older generation or has no clue.