Why Isn't Every New Home in America built with a minimum of one or more of these?

Why Isn't Every New Home in America built with a minimum of one or more of these?

Steel mesh barrier termite control system.

Termite barrier

Termite Bait Stations

For below-grade walls, use solid concrete foundation walls, masonry walls with a course of solid block bond beam, or concrete-filled block.

Treat all cellulosic structural material with borates.

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