I’ve flown helicopters for a living since 1979 (with a few years of light fixed wing, too) and was trained from very early on to fly in IMC on “floppy stick” helicopters. I have (infrequently) flown some of my family, including in IMC on a couple of occasions…..but never in an unstabilised single.
I also ride motorcycles and have been doing so since long before learning to fly, having first learned to ride well over fifty years ago. I’ve always been more careful when carrying a pillion passenger. If I’ve not ridden for a while, I’d never take a passenger until I’ve gone out solo for a while, particularly when changing between my two bikes with foot controls on the opposite side.
Maybe being cautious is why I’m still here and have never injured a passenger, either flying or biking.
I’ve known both pilots and bike riders who weren’t so cautious and considered themselves highly expert but are no longer with us..