I never go anywhere without the legal means to protect myself from 4 or 2 legged danger.
I think Bear Spray at the minimum is a prudent idea IF push comes to shove.
Where legal, I'd bring Bear Spray and a firearm.
A 12 gauge pump shotgun with a pistol grip handle, loaded with a mix of slugs/buckshot will come in at around 6lbs.
I could find a way to pare down other gear to fit that in especially if I was in Brown Bear country.
While the odds of getting attacked by a wild animal may be the same as getting hit and killed by lightning, IMHO opinion there is one big difference people don't take into account

A fatal lightning strike, your dead before you hit the ground.
Bears will often maul you viciously and if you play dead as they recommend with Grizzly, they'll sometimes bury you in a shallow grave and comeback later to feed on you.
Whether they eat you now or later, dying by fang and claw isn't going to be a pain-free death, unless your " lucky" enough to die with the first bite or blow.
I think the old adage about expecting the best, being prepared for the worst fits here too.
In areas that don't legally allow firearms, I'd consider one of those light weight backpacking bear fences for around the tent at night.
Seems like many attacks happen around then and involve campers being dragged from their tents/sleeping bags.
Common sense and all the precautions mentioned are great but sometimes ***t happens.
When/if it does I'd like to have more than a big stick or pile of rocks, not that theres anything the matter with that