I'm a 24 год old brony and I Любовь the show. Just because Ты get older, it doesn't mean Ты have to give up on things Ты enjoy, becuse society expects Ты to. Screw that, I Любовь cartoon technicolor ponies! :)
A good majority of bronies are males and the ages range from 14 to 65. Not to say that bronies are all male, there are a great number of female bronies as well. The Показать was originally made for girls 6-9 years old, but because of the clever writing, fantastic animation, and wonderful music, it drew in a much much larger Фан base.
Just remember, it's a cartoon, there is no difference between Ты as a brony as a Фан of Adventure Time или any other cartoon. So have fun and brony on.