Nah, don't do that. I've ridden on and off for years. I'm 27 next month and have been riding regularly again for about a year and a half. Probably enjoying it more now than I ever have in the past. I do find that when I'm riding street I am more aware of people around me than I used to be when I was younger, I tend to sometimes wait until thay have moved on before I start bashing any walls if you know what I mean! If you enjoy it, it doesn't matter how old you are, make the most of it, sometime we really will be too old to ride, I don't want to look back and wish I'd ridden more!