Not a BO, but a very happy and grateful boarder. My barn does not have hours, the BOs just ask that people exercise good judgement and common sense, and if we are the last ones there to take a look and make sure everything is turned off/closed up etc.
It’s a small barn with ~15 boarders + a few part leasers etc. Everyone values the flexibility and respects the barn so it works out. The BO is very kind but I suspect she would not hold back if someone was blatantly disregarding rules/protocols.
9am is quite late to open, in my opinion. Makes it very difficult for most working people to ride before work.