Earlier quoted context omitted.
BJJ is not good for older bodies :). Its too tempting to keep rolling and ignore signs your body is telling you. I think BJJ is the most grueling on your body of all combat sports.
If you're 40 going up against 20s all the time sure. But BJJ is one of the easier things I have done to my body. Basketball (back injury, broken ankle), wake boarding (slight concussion, torn ACL), and snowboarding have all been much harder on me than anytime I've done starting from a knee rolling. But, you do need to make sure the people you roll with are not idiots (like any other sports where you have to rely on/c…
Also +1 for "make sure the people you roll with are not idiots". I guess my role is to follow you around agreeing with you.
Further, make you that the person that you are 2 minutes after the roll starts isn't an idiot. My IQ often drops about 10 points her minute of the roll, so I'll go in saying to myself "OK, today I'm going to work the Shaolin sweep from knee shield half", a minute later it's "I'm going to get whatever I can get from knee shield half", a minute later it's "let's just wrestlefk my way to top position any old how and then work a principled submission" and by the end of the roll it's "smash this fool with everything I've got like it's the Abu Dhabi trials". I am very aware of this tendency and work like hell to avoid it, but it's important to recognize that idiot-avoidance isn't just about other people.