24 is too old to still ride a skateboard. Hell, 10 is too old for that.
Hell, I'm 31 and I still love riding my skateboard.
I started flying when I was 27, had my commercial license when I was 29 and now at 31 I'm flying a large turboprop. At 24 you're not even close to being too old!! The last thing you want in life is to look back and regret that you never made an attempt to do something you love. And at 24, you're still young!