Growing up in Scotland, where there is no law about trespassing - you can in principle quite legally walk anywhere you like, we were taught never to go into or across a field that had cows or any other animals in it. Usually you could find a road or path round the fields.
If not, and you decided to risk a short cut across a field with animals in it, you only did so, if the animals in question were not anything with young. And stayed near the fence so you could hop over it if things got scary.
At no time was it advisable to cross a field of Highland cattle or Aberdeen Angus.
Rams butt intruders, stallions may well attack too, goats take a wicked delight in butting people, but were largely unknown in Scotland in the 1950s.
Use your common sense and remember to CLOSE THE GATES BEHIND YOU, which seen from the stockholder's point of view is much more important than anything else.
People who grow up in towns need to be aware of the realities of country life - if a person from one of the Outer Isles that has about two cars on it , comes to Glasgow we expect him to know how to behave in traffic, so why don't we expect town people to know how to behave around animals?