Well, I live on a VERY busy US Highway where thousands of semi trucks go past every day at 70MPH. Sometimes it takes me several minutes to get out of my own driveway and out onto that highway. The very last thing I need is to have a loose horse running out on it.
So, I teach them all to tie solidly and to tie well. I have 60 horses and they ALL will stand tied for hours including my two stallions. I have several very safe places to tie horses up. I have three oilfield storage tanks that have been made into a grain storage bins (a 400 barrel tank hold 1 1/2 semi-loads of grain and stands 20 feet tall X 12 feet in diameter). I now only use 1 as a grain bin and the other two have been made into tack rooms. They are smooth and have had big horseshoes welded to the outside of them some 7 feet above the ground.
A second horseshoe is welded some 8 feet away. I can run a strong 20 foot nylon rope THROUGH the one horseshoe and tie it off to the second one. A quick release knot allows me to tie a horse to one of the horseshoes, seven feet above the ground and I can quickly untie the horse without getting near it if I have to.
I tie a horse long enough that it can stand comfortably. By having the horseshoe 7 feet above the ground, I can give a horse enough freedom to be comfortable and still not have the rope long enough to have him get in trouble. About as high as his withers seems to work the best.
I never have to worry about the horses I raise and teach to tie, but the spoiled ones I trained for so many years were a different story. Many set back and threw themselves to the ground when they found they could not break their halters. This is the kind of violent reaction you can get when you teach horses that they can break anything they are tied with. It is soooo much better to not spoil them in the first place. I spent a lifetime cleaning up enept people's messes, so I can tell you first hand that doing it right the first time is so important.
I start out tying young ones for short periods of time and ALWAYS put them up when they are standing quietly. After tying one several times for grooming, I leave them alone while I work on a different one but stay where I can keep an eye on all of them. They are most likely too throw a fit when you take other horses away and they are the only one still standing there. So, I make sure they are standing quietly before I put the last one up.
Once a horse has been well taught to stand tied, you can then tie it anywhere, and not have to worry about it. I never give it a thought to tie a trail horse overnight to a tree limb, picket line or trailer and go to bed. I will tie such a horse with enough rope to lay down, eat hay and reach a water bucket that has been set in an old tire. The rope typically comes a foot from the ground. I have also taught a good many horse to 'stake out' on a 20 foot rope tied to a stake. Horses that have been taught to properly give to a rope will learn very quickly to not fight and will learn to step out of the rope. I used to run pack strings and take out hunters in the mountains of Western Colorado. Every trail horse and pack horse was taught to stake out. Other people would send my their horses to tech them to tie and to stake out well.
It all starts with teaching a horse to stand quietly while tied. To me, this is a most important lesson for every horse to learn.