I've fought at a few gatherings without insurance coverage for injuries, because after thinking about it for a while, I realized that I could always talk myself out of fighting or competition if I focused on all the bad things that could happen. I also wouldn't skateboard, wouldn't ride a bike in the city, or hike outside the range of medical support. As a young man, I feel that this is the time to be collecting experiences and stories, not waiting until I'm old, creaky and insured. In fact, I fight as a way to tell that little voice of doubt to shut the hell up because he's not the boss of me.
Having said that, I don't train at that intensity level all the time. Right now, here's my training schedule:
2 nights a week of arnis doing mostly structured drills, where I sometimes get bumps or bruises but its safe. This is run by a guy in his late 60s and his son who's got mobility problems, and the members are all friends, so its not super intense, but that's where I get my technical FMA. Single stick, double stick, sword and dagger, knife, spear, karambit.
1 night a week informal sparring workout. Some of my training partners and I get together in my backyard (or somewhere else), pad up and spar with weapons. There's usually 2-7 of us, mostly from the arnis training group but a few from other styles (one new guy is a chunner, and another has a varied background including 52 blocks). We just wear fencing masks, gloves and a cup, but we spar using padded rattan sticks or padded daggers. We have a round timer going for 1:30 and after each beep, one person goes out and another goes in, to keep it continuous (and 3 minutes in per person seems to be a good challenge without being too long). I play the drum when I'm not sparring. Once we're all tired, we usually talk about how we all performed, and work on little details. We often break off into little pairs to work on whatever. These sessions are from 7PM till like 11PM.
Then I also try to drop in to spar with other groups here and there. For example, a few weeks ago, we went to Mario Gajo's training group at We Love Kempo and did some padded stick sparring while they prepared for a tournament. This weekend I'm gonna we're gonna do some padded stick with the Cannibal Combat group. These sorts of training excursions are usually not super high intensity or heavy contact, since we're guests being treated as such, so both sides are kind of easing into things. Cross style sparring bouts can turn into a lot of "mutual kills" if they are approached too hard too fast, IMO.
Then I just do other stuff on the side for cardio etc. Bagwork, Indian clubs, jumping rope, cycling and hiking, but this is not on such a set schedule because I do it alone. Ideally, I'd get more grappling training in there, and get serious about lifting, and do MT or sanshou or something, but I don't think that's gonna happen. I have zero free nights left during the week and I have a girlfriend and full time job that take up the rest of my time. My training is not ideal, but again it comes back to the idea that you'll always be able to find excuses not to fight. I go in fighting knowing that I don't have the greatest training regimen or physique because we don't live in an ideal world so you can either work with what you've got, or complain about how you're not prepared.