I would suggest that you have better information on the actual resources assigned to livestock in western Canada.
For the two people I know in the Fraser Valley who do it, they do it because they're both from farm backgrounds and have a farm. They're actually a husband-and-wife pair. The only RCMP officer I've worked with outside of that is a single officer in the province assigned to livestock.
It's a small resource, as far as I'm aware, but there could be some training to help them go on and off farms to deal with the issue. As with any regulation, it comes down to whether there is a will to enforce it and how much you want to enforce it.