Yeah, I ride with the gate open (well, we don’t have fencing right now anyway but when we did). In the field with other horses (they’re all turned out together, I wouldn’t ride in strange horses’ pasture). I ride bareback in a halter. I don’t care if someone is lunging or riding bikes or driving the four wheeler or unloading massive construction equipment. Or revving the go cart right behind the crossties (okay I turn the horse around, but it’s fine once they can see it).
However, this place is not a traditional “training program” boarding barn. The horses are very used to all kinds of nonsense going on, and they aren’t startled by it for more than a second. Flushing birds out of the woods is infinitely scarier .
And that’s the difference - these aren’t random occurrences and the general horse handling safety is in place. Gates are shut, horses are tied properly or put in stalls, and there is enough space that you can get away from anything too scary.
I once trotted a horse off for a vet check, and the only flat space is in the yard behind the (fenced) pool. Music was playing and the kids and dogs were running around screaming - the vet asked if my horse was going to be spooked by the commotion. It took me a moment to figure out what “commotion” she was talking about. “Oh, nope he’s not going to care.” She didn’t believe me, I could tell - but he didn’t even flinch.
I’m realizing that I used to tiptoe around my horses too much. Don’t get me wrong, the “barn rules” are all safety related. But the barn rule is also “the kid is going to ride his bike like a maniac on the driveway. Your horse is going to get used to it, but if it bothers you, it’s okay if you leave”. Works for us!