All this condescending language. I think I'm melting over here.
It's not about "risk elimination," as if that's even possible. It's about practical and realistic ways toward "risk reduction." In other words, you do what you can, and you can't reasonably be held accountable for acts of God or Mother Nature outside your control.
Practically and realistically speaking, you can't put a spare vehicle in your gig bag. Once the heart attack begins, it's pretty much game over for the day. To be blunt, those arguments and comparisons insult even the average intelligence.
If a club expected me to roll my rig and gear several city blocks to get to the door, for what a typical club gig pays, I'd not be playing that club. Few in my city would be so stupid. We'd just as soon stay home and jam to get our kicks. That's ridiculous. Any club on earth has the ability to make it easier for people to load stuff in and out. I believe in the USA we call it "load only" temporary parking, and it exists at every business I've laid eyes on in dozens of states. Don't tell me the beer man, with thousands of pounds of product to deliver, has to roll all that beer several blocks.
The saddest thing about this thread is the dishonesty. The most honest replies are along the lines of, "Yeah I know I should, but I don't want to." Just say it, don't defend it, and keep rubbing that rabbit's foot or whatever you're doing. Because the practical reasons for having a spare bass, and what it can do for you in an emergency, far outweigh all the half-baked far-fetched excuses for not having one. I have much more respect for posters who say they are just lazy, or immune to fate or bad luck, or prefer living on the edge, or physically can't bring a spare.
I'm also re-thinking the whole "these gigs I play don't really matter" mentality. Not only is that just an awful sentiment on the surface, to think that any audience or talent buyer can be that easily dismissed, but it defies the "you never know who may be listening to you" work ethic (McCartney). I once booked one of the best-paying royal weddings of my life...after playing a casual back yard barbeque the couple had attended.
You never know who may be watching and listening, and if momentum means anything to your performance and reputation, you do what you can within reason to ensure it.