Open Carry is great and I support people that band together to make it acceptable in places unused to it. It is far more practical in some situations. Especially in places without many people. Like in the woods or brush. Which can still be illegal, especially if technically within some judicial boundary, or not engaged in hunting or some other exemption.
As a result backpacking or hiking with a gun can be illegal even in the wilderness while concealed carry is not in certain locations.
Or when doing manual labor. Yard work or heavy lifting when you have a chunk of metal pushing into your side is certainly less enjoyable than various forms of open carry.
Or out on a hot day and you want to take off your concealing garment. Or maybe you spill something on the shirt concealing the firearm and want to take it off?
If open carry is legal you can. Otherwise you become inconvenienced.
One of the biggest benefits to open carry is not just open carry, but the ability to carry concealed and not worry if you are printing, or the wind blows your concealment.
Your Concealed Carry firearm can be exposed without people making "man with a gun" calls to the local police because they saw a holstered gun. All because they have come to tolerate people open carrying, so when you open carry for a split second, it is nothing new.
Or you are out with your woman. She decides looking good for the evening in some paper thin dress that shows some skin is more important than being practical and so later on in the evening she is cold. But because you cannot legally carry openly you must keep your own jacket, even if you are more than warm.
It may be dark and there may not be many people around, let alone likely to see a holstered gun in the dark, but the law says it must remain concealed.
You hit a "gun free zone" and along with all the criminals realize you must immediately take off your gun.
While taking off your gun to comply with the asinine legislation someone notices you. But because open carry is illegal they panic. "Someone has a holstered gun!!!!". And you get a nice chat with several paranoid officers and end up late for whatever you were on your way to do, as well as possibly spotted by people seeing you dealing with the police that you did not want to explain the situation to or to know you had a gun.
Yet if open carry was legal and practiced the problem would have been quite unlikely.
There is many benefits to open carry being an option, even for people that do not like to open carry.