[dylan604]

Some physical constraints do not allow for the best security, and those physical constraints will always win out in the real world. When presented with the pick two of three options of fast, cheap, secure/done right, fast and cheap will always win out.

[kayodelycaon]

And sometimes security can’t be a high priority.

When it comes to building things: fire, building codes, inspectors, public, utilities, lenders, and insurance all go before security.

All those dictate whether or not you can build in the first place.

Real world constraints are everywhere. :)