I’m not re-designing a lock, but rather a latch.
They are different mechanisms and concepts.
How small or how large should I be thinking? The whole system of the room, or just one latch?
Subject: public restroom latch
Problem: decreasing the emotional issues associated with public restrooms (fear, embarrassment, confusion) while making the mechanism itself simpler, more obvious, and easy to use.
Focus on: feedback (audio, visual, tactile), comfort, materials (utilitarian, but nice), ease of use (won’t get stuck, easy to slide, fool-proof, safe)