Does any practitioners have any comments/advice on taking this up when *very* out of condition and in your 40s. When you watch the Joe Rogan experience he often tries to convince his guests to take this up and swears by it as the most effective martial art. What compounds this is knowing he is also an expert in most of the major martial arts; Taekwondo, Boxing, Kickboxing and Muay Thai. The problem is, unlike those others. I would say Jujitsu alongside Judo seems to be the most intimidating martial art to even consider taking up and my perception is that if you don't have a high level of fitness when going in the risk of injury seems to be very high. Or at least the risk of completely humiliating yourself. Both I am very worried about. Can someone offer some comment on this? Secondly. I had dislocated my knee in my teens, 30 years ago and I am worried this could dislocate again in this class. Would this mean Jui Jitsu is out or can you wear knee braces and do they work? Is there any general advice people can offer about being in your 40s, overweight, inflexible, and very out of condition and with a previous dislocation and taking this up. Should you just forget about this entirely and stick with the striking arts like Boxing?