I think the bigger question you should ask is why you're going. What are you desiring to do or experience? By determining this beforehand you'll be able to ascertain if it's the right fit. Oftentimes people fall in with a group or practice and become disenchanted because their desires go unmet. With that I will say that it's okay not to join. It's perfectly acceptable to want something else. Fit and enjoyment go hand in hand. Good luck.