Is it possible to work as say a driver, guard, signaller, etc. and still have the odd occasion to go to your volunteer club, martial arts dojo, acting group etc. at least once/twice a week?
I see makes sense. What kind of clubs are you apart of if you don't mind me asking? I currently do martial arts and volunteer for a charity organisation, both of which I've done for yearsI'm a member of a couple of clubs/societies, one of which I joined after starting shifts on the railway. I'm not a huge fan of swaps unless they are essential to me (or someone else for that matter) meeting a specific commitment. One thing I would say is that if you join any new clubs, make it very clear that your availability is to an extent, limited by shifts. That's what I did, the new club I joined was perfectly fine with it.
The main "group event" club I'm involved in is a public speaking society, the other ones I can just turn up to when I want really. Hobbies which are flexible timewise can be fairly handy, I've noticed a slight trend with train driving and flying light aircraft, since at most flying clubs you can turn up to fly whenever there's a slot it's quite handy.
One thing I will mention about sports is risk of injury, I know someone who gave up rugby when they started on the railway because the risk of injury was, in their view, too high for the job. However I do know of at least one who's involved in martial arts who drives trains.
Ive known drivers take part in all sorts of "risky" activities, (myself included) motocross, skydiving, downhill mtb racing, rugby, climbing, car racing etc etc. If you're into something there's no way I'd stop it just because you might injure yourself. I know someone who when walking slipped off a normal kerb and messed their ankle up so bad they were off work for 8 months.