[CottonBall]

Then all these walls in my house are..what?

The Great Wall of China had doors, as did the Berlin Wall. It didn’t stop them from being effective.

[Excellence]

Then all these walls in my house are..what?

Walls. But your walls have holes in them covered with planks of wood on hinges which will break if enough force is applied.

One heavily guarded, double set of steel gates might be okay.