My friend Tex had porch screened with wire mesh of a pretty good gauge.
There was a doorbell to the security door to the screened porch. If you wanted in, you rang the doorbell to the porch, and Tex could see you from his house 15 feet away. If he wanted to, he could let you in; if he did not want to, you were 15 feet away, and could not be sure exactly where he was. A solid wall prevented easy access to the rest of the house’ egress points.
So he had a “standoff barrier”. the same can be done with a good fence and and a bell at the gate.