Not old enough
I have to be 16 or older to go to the gym (in Norway). It is so annoying! Are there some exercises I can do that is at least as good as the ones you are able to do at the gym?
You can do a lot at the gym, so please be a little bit more specific.
You can do sit-ups and crunches, which are very effective. I never used any equipment and have great results.