Security always seems to exemplify an invalid syllogism: secure systems are inconvenient, therefore inconvenient systems are secure.
It follows that a keypad at an inconvenient height is more secure than a normal one. When it starts to rain, it becomes even more secure. Presumably somebody thinks that criminals are deterred by minor inconveniences - "I was going to rob the bank, but the queues were too long, so I couldn't be bothered."
If you draw attention to the difficulties of using most systems, you will get a sympathetic hearing. If you do the same with a security system, you're treated like the sort of feckless moron who leaves a key under the mat.
Biting the hand that feeds IT
