There's also an issue of education and understanding.
Before I got into farming I thought of myself as a country-lover. I walked widely, had extremely well-trained and well-behaved (and well-exercised) dogs, lived backing onto farmland, etc, etc.
Even when I was working on other people's farms, I still didn't really get it. Only when I had my own moorland farm with hundreds of ewes whose pregnancies really mattered to me did I come to understand how very little stress it takes to cause a ewe to lose that recently implanted egg, to leave that newborn lamb, or a lamb to run scared into a fence, trap a leg and lose a foot.
A Scottish shepherd once told me, years ago, that ewes can tell the difference between a dog on a lead and one running free, that they know their own dogs and which dogs are strangers, and that strange dogs unleashed cause stress and harm, however well-controlled and -behaved. After that I did, always, walk away from ewes with newborn lambs and keep dogs on leads near sheep with any lambs - but much more to appease any farmers who might be watching than because I really believed what I'd been told.
I know now that he was right. I just don't know how to get the message (and all the other similar messages) across.