I have borrowed and loaned stuff before. Most of the time it has been fine, but a handful of bad experiences can sour you to the whole thing.
It used to be common knowledge that if you borrowed something, you should clean and return it immediately after being done with it, (don’t really want somebody else cleaning my rifles, but please don’t shoot my muzzleloader and then stick in in a case for a month), and if you borrow it more than once or twice, you need to go buy it for yourself.
Now it seems like you have to go ask for your stuff back several weeks later and “oh yeah, let me see if I can find it, or I let so and so borrow it” are common answers.
I’m much more likely to loan stuff I have multiples of (you can borrow by Leupold binos but not my Zeiss’s), and when I’m hunting with a group I’ll often bring a backup rifle in the truck in case somebody has an issue with their stuff.
My main hunting partner has a good sized John Deere tractor at their ranch, don’t know model numbers but the rear tires are about 6’ tall. They let somebody down the road borrow it to run a batwing mower who then didn’t return it. A couple weeks later they wanted to plant and asked the guy to bring the tractor back. He told them they could come pick it up and my buddies brother spent an hour fighting to get the mower unhooked.
I’m not as nice as he is and probably would have just torched the tabs off it after trying to do it the right way for awhile.